I. TERMS AND CONDITIONS FOR VISITORS
C3 Crypto Conference GmbH
Untenden Linden 24
10117 Berlin, Germany
By entering the exhibition space and/or conference premises you will become a contracting partner of Crypto Conference.
The following terms and conditions (“GTC”) apply in regards to relations between Crypto Conference visitors (hereafter referred to as “visitors”) and Crypto Conference (hereafter referred to as “Organizer”). By purchasing a ticket or or by entering the event premises, you will enter into this contract. All contracts or verifications of contracts must be confirmed in writing by one of the CEOs. A contract, order or offer will only be deemed concluded once the contractual document is signed by one or more managing directors.
Thursday, March 28: 10 am – 6 pm
Thursday After-Show Party: 19:00 – open end
Friday, March 29: 10 am – 6 pm
2.1 By entering the exhibition space and/or the premises, you will become a contracting partner of Crypto Conference. The number of visitors is limited, entrance tickets are only available via online registration, our ticket partner on our website, and exclusive partner websites. In the event of remaining tickets, those tickets will be offered at the door. The organizer recommends purchasing tickets beforehand due to high demand.
2.2. The organizer prohibits private and/or commercial resale of purchased tickets. Using tickets for raffles and/or competition prizes without prior written consent of the Organizer is also prohibited. Violating these conditions will lead to the loss of authorized access to the event without compensation. The Organizer reserves the right to contractual penalties arising from unauthorized resale.
2.3. There will be no replacement for the loss of the ticket.
2.4. Purchased tickets are excluded from exchange or return.
3. ENTRANCE/ SECURITY CHECKS
3.1. Admission is only granted with a valid ticket. Tickets must be presented at the entrance.
3.2. To ensure the safety of attendees, security checks will be done at the entrance to Crypto Conference by the contracted security service. The security company is advised to do a body and bag check of all visitors
3.3. The organizer reserves the right to refuse admission to Crypto Conference. The organizer may refuse admission to obviously or apparently intoxicated visitors; visitors wearing racist, sexist or homophobic outfits; as well as the wrong clothing (not deposited voluntarily), and those attempting to enter the premises carrying dangerous and/or illegal objects (weapons, pyrotechnics, intoxicants and others). Attempting to enter the premises in violation of this section voids any and all claims for a ticket refund or return.
3.4. In case of denied admission despite a valid ticket, visitors are allowed the right to a ticket refund, except the existence of a previously defined reasons for denied admission (§3.3). In this case the return or refund of tickets is impossible. A damage claim beyond this is excluded except in case of intentional or gross negligence on the part of the organiser.
3.5. The organizer assumes no contractual obligation to ensure supervision of visitors who require such a supervision due to their mental or physical condition. This applies to visitors needing supervision, the individuals responsible for this supervision, as well as all other guests.
3.6. The organizer is not responsible for any injuries not resulting from the negligence of the organizer.
3.7. Tickets are only valid for time period(s) listed.
4. CANCELLATION, CANCELLATION OF EVENT, DELAY, CHANGE OF PROGRAM
4.1. The event will take place under any weather conditions as long as the organiser takes responsibility for the circumstances of the weather. Should the weather conditions constitute a risk for body and health, the event can be cancelled after it has begun.
4.2. In the case of the cancellation of Crypto Conference before it begins, visitors have no right to a refund of the ticket price.
4.3. There is no entitlement to a refund of ticketing fees or any other compensation unless the organiser is responsible for the cancellation.
4.4. If Crypto Conference is cancelled due to an act of God (especially weather conditions) or official/court order, the festival visitor has no right of a ticket refund or indemnity claim, except if wilful intent or culpable negligence on the part of the organiser can be proven.
4.5. The organiser reserves the right to change the site and/or time of Crypto Conference, in case the execution is no possible or unreasonable and in the case the postponement is reasonable:
a) Move to a different site: in the same or at least a neighbouring city
b) Move to a different date: to the next day or, if the impending conditions (especially weather conditions) persist, the next Saturday or Sunday, if the event site is still available.
Postponement of the event will be communicated by the organiser immediately on their website and, if possible, via daily newspapers, radio and social media pages. Before committing to large expenditures for your visit, it is strongly recommended to check the website of the organiser.
4.6. The organizer reserves the right to delay or adjust the program of the event.
4.7. Changes to the program of the event will be communicated by the organiser as soon as possible.
4.8. The organizer reserves the right to change the program. A shortening or extension of the program is possible even after the start of the registration process and has to be tolerated by the buyer.
5. PROPERTY OWNER’S RIGHTS, BANS
5.1. On the entire festival site the property owner’s rights are in effect and will be enforced by the organizer (or by those commissioned by the organiser, respectively). The instructions of the security personnel are to be followed.
5.2. Any commercial action (especially sales or advertisements) are forbidden to festival visitors, except in the case of a written agreement with the organiser, which have been determined in advance. The organizer reserves the right to charge a fee of 1.000€ in the event of non-compliance.
5.3. Should a visitor violate any of the aforementioned rules and regulations they may be expelled from Crypto Conference and the event area. A refund of the ticket price, as well as claims for damages will not be granted unless the organiser or their agents acted with wilful intent or culpable negligence. In the case of violations, the organizer reserves the right to impose a contractual penalty of 1,000€ towards visitors or their clients. Visitors must present the burden of proof against their claimee. If it is not provable who the client is, the claim will be made against the visitor automatically.
6. FOOD AND DRINKS
6.1. Drinks are sold at the Crypto Conference event. Food is served in reusable plastic or cardboard containers. Please respect the environment and dispose or packaging, as well as any other garbage in the designated containers.
6.2. Regarding the sale of food and drinks, a contractual relationship only exists with the caterer chosen by the organizer. The sale of outside food or drinks by all other parties is prohibited.
7. PHOTOGRAPHS, RECORDING DEVICES
7.1. Taking pictures on site is only allowed using mobile phones and only for private use. In the case of other photo and video equipment being used for exclusive, private use, this equipment must be registered beforehand. In this case, please send a mail to email@example.com with the a description of the equipment and intended use. The equipment may only be used on site following a written clearance by the organizer. Live recordings may not be uploaded online.
7.2. Cameras with zoom lenses, interchangeable lenses and/or video function, as well as recording devices (MP3/MP4-recorders, dictation machines and so on) of any kind are forbidden. The organiser reserves the right to deny admission to visitors who are not willing to leave unapproved devices behind. Live recordings, made without the explicit permission of the organizer, are also forbidden. The organiser is permitted to delete illegally made recordings or have them deleted. Publishing of such recordings will be prosecuted.
7.3. Any use of visual and sound recordings for commercial purposes without prior written consent is prohibited. In the event of, infringement a penalty of 10.000 € will be owed – this shall not impact the levy of any additional damages.
8.1. The organiser does not have cloakroom or other storage facilities and is therefore not liable for any lost or stolen items.
8.2. The organiser is liable for any injury or damage to life, body or health if it can be determined to be caused by negligence on their behalf. The same applies to any other damages caused by the organiser through the wilful or careless violation of duty. For typical contractual damages that the visitor incurs as a result of a significant infringement of contractual duties (called “cardinal duties”), the organiser is liable even if only minor negligence can be proven. Moreover, the liability for minor negligence is excluded. A fundamental breach of contract as in the aforementioned sense, is one whose fulfilment is essential for the proper execution of the contract and on whose adherence the visitor can rely. The organiser is equally liable for violation of duties by his legal agents.The organizer are not responsible for any injuries, which cannot be reduced to the negligence of the organizer.
9. SMOKING BAN
9.1 In the exhibition rooms, the general ban on smoking must be followed. Smoking is permitted only in designated and marked areas. Exhibitors are liable for compliance with the smoking ban by visitors at their stand. Should visitors refuse to comply, this must be reported to the staff of the organizer immediately. The exhibitor is liable for all damages incurred by the organizer by the failure to comply with the smoking ban.
10. USAGE RIGHTS, ADVERTISING RIGHTS
By entering the event site, the event visitor irrevocably agrees that pictures, images and sound recordings are made during the event which can be used free of charge for reports, as well as prospective advertising of Crypto Conference in all media formats. Visitors also agree that this material is used for sponsor acquisitions. This approval only extends to:
a) incidental recordings of the visitor as part of the event recording / event photos.
The organiser saves and processes the data provided by the ticket buyer solely for the mutual contractual compliance. The organiser may only use the data of the visitor for informative purposes (such as event information, newsletters, etc.)
12. FINAL CLAUSES
Subsidiary agreements, changes and supplements require a written form. This also applies for the written form requirement itself. The law of the Federal republic of Germany is applicable. If the jurisdiction clause is valid, the place of jurisdiction is Berlin, Germany. If individual regulations of these general terms of conditions become void, this shall not affect the validity of the rest of the regulations. The same shall apply to any gaps in the contract. In these cases, the invalid provision or gap in the contract is replaced by a valid provision that comes closest to the economically intended purpose.
II. TERMS AND CONDITIONS FOR EXHIBITORS
The following terms and conditions (“GTC”) apply to the exhibition “Crypto Conference”.
1.1. Location and organizer
Organizer of the exhibition “Crypto Conference” is
C3 Crypto Conference GmbH
Untenden Linden 24
10117 Berlin, Germany
1.2. The contractual relationship between the exhibitor and the organizer shall be governed by these GTC and other conditions notified to the exhibitor by email and/or by post and/or fax. GTC of the respective location must be observed and complied with.
2.1. Registration must be executed by the exhibition registration form according to the relevant exhibition, which must be completed, signed in a legally binding manner and sent to the organizer (online or offline). A provided offer signed by the exhibitor/sponsor is equally valid in either case.
2.2. The submission of the registration form does not justify a claim for admission. The return of the filled and signed registration form/offer to the organizer is a contract offer from the exhibitor/sponsor which requires acceptance by the organizer.
2.3. By registering, the exhibitor/sponsor recognizes all General Terms and Conditions mentioned in paragraph 1.2. Unilateral reservations or conditions in connection with the application will not be considered. The exhibitor/sponsor is responsible for ensuring that the persons employed at the fair/exhibition, and its agents, comply with the terms and guidelines.
2.4. For registration processing purposes, data will be stored, evaluated and, if necessary, disclosed to third parties for the purpose of contract execution. The exhibitor/sponsor hereby grants their consent by applying.
3. ADMISSION AND PLACE ALLOCATION
3.1. National and international manufacturers, distributors, service companies and institutions or associations and organizations as well as those companies that are authorized by a manufacturer to exhibit his products, and companies whose products objectively and thematically fit to the fair/exhibition are allowed. Attendance in the form of community stands is permitted, but all participating companies must be submitted to the organizer in written form before the official closing date for printed documents.
3.2. The organizer may request that exhibitors be removed from the exhibition, if their booth or behavior is deemed to be harassing, hazardous or inappropriate. If exhibitors do not comply with this demand, the removal of objects is carried out by the organizer at the exhibitor’s expense. The exhibitor guarantees that they possess full authority over the registered products and necessary regulatory approvals or permits for their operation. The exhibitor/sponsor is not entitled to a refund of money or an adjustment of the stand rental in the event of a violation.
3.3. The admission of exhibitors and registered exhibits will be decided by the organizer, eventually in cooperation with competent bodies/ministries. The organizer may exclude individual exhibitors or suppliers from participation out of objectively justified reasons, especially if the available space is insufficient and if necessary for achieving the purpose of the fair/exhibition, limit the event to certain exhibitor or provider groups. The organizer is also entitled to limit listed exhibits and to change the registered stand. Admission applies only to the listed exhibits, the exhibitors determined in the confirmation of admission and the space stipulated therein. Other items than those listed and admitted cannot be exhibited. Furthermore, other products may not be advertised in form of advertising brochures or sales conversation. Exhibitors who do not fulfill their financial obligations to the organizer or failed or have violated the terms and conditions or legal regulations may be excluded from participation.
3.4. The exhibitor will receive a written confirmation of receipt. With this acknowledgment of receipt the contract between the organizer and the exhibitor is concluded. The organizer is entitled to revoke the admission, if it was granted on the basis of false assumptions or information or admission requirements do not apply later.
3.5. The space allocation is made by the organizer in accordance with the subject and structure of the particular fair/exhibition and the amount of space available. Special requirements regarding the space mentioned in the registration form will be accommodated wherever possible. The organizer, if necessary, reserves the right to change the size, shape and position of the allocated space. The organizer will immediately inform the exhibitor about the necessity of the measures and will possibly allocate an equivalent stand. In case of changes in the participation fee, a recalculation or reimbursement will be done. Claims for compensation are mutually excluded. The exhibitor must accept that at the beginning of the fair/ exhibition the location of other places has changed since the time of admission. Claims cannot be derived therefrom. An exchange of allocated space with another exhibitor, as well as a partial or complete relinquishment of space to a third party is not permitted without the consent of the organizer. If the allocated space is not available due to unforeseen circumstances (non-culpably by the Organizer’s control), the exhibitor is entitled to a refund of the participation fee. A legal claim for compensation does not exist.
4. PARTICIPATION FEE
4.1. The participation fees are calculated based on the given net m2 prices stated in the registration form multiplied, by the total area of floor space, if necessary plus size- and version depended rent for the exhibition space (stand). The minimum space size is as listed, every additional square meter of floor space will be fully calculated as rectangular area supplement without taking account the actual stand form.
4.2. The participation fees and any other charges are net prices. VAT will be calculated according to the legal provisions of the country at the respective date of the fair/exhibition in which the fair/exhibition is taking place.
4.3. Reorders are possible up to 21 days prior to the fair/exhibition without extra charge, orders from 14 days before the start will be charged with 20% late-booking surcharge.
4.4. Services which arise during the fair/exhibition or dismantling will be calculated afterwards. If the actual expenses are higher than pre-ordered a recalculation with a surcharge of 20% will be carried out.
5. TERMS / CONDITIONS OF PAYMENT AND LESSOR’S LIEN
5.1. A participation invoice is both admission and space confirmation. At the conclusion of the contract, the full rental fees plus any additional costs are due within 14 days. The full and prior payment of the invoice amounts is a mandatory requirement for access to the stand and for handing over the exhibitor passes. Invoices for any additional costs (e. g. technical service, accessories / furniture) will be sent out immediately after the order, optionally after the fair/exhibition. They are to be paid by the exhibitor immediately upon receipt of the invoice or to offset the paid withholding amount.
5.2. All invoices are to be transferred without deductions at the full amount in Euro at the price listed in the invoice while stating the invoice and customer number.
5.3. For all unfulfilled obligation, the organizer may retain the exhibitors’ stand equipment due to the lien. §560 sentence 2 BGB shall not apply, unless sufficient security already exists. The organizer may, if payment is not received within the prescribed period, sell the retained items after written notification. The organizer is only liable for intent or gross negligence for damage and/or loss of the pledged property.
5.4. If several exhibitors rent / co-rent a stand together, each of them is individually liable as joint debtors. They must be named an authorized representative in the application.
6. CANCELLATION & NON-PARTICIPATION, COMPENSATION
6.1. Pending approval, withdrawal from registration is possible.
6.2. After admission to the event, cancellation or reduction of stand by the exhibitor is not possible. The total participation fee and the actual services provided are to be paid. The exchange of unoccupied spaces by the organizer to maintain the overall visual impression does not release the exhibitor from their obligation to pay. Should an exhibitor fail to occupy the stand allocated to him, or in the case of non-compliance with payment deadlines, this area can be otherwise rented by the organizers (not by exchange), the exhibitor shall pay 30% of the participation fee, at least € 1,000 (VAT exclusive) due to lost profits and compensation for administrative expenses.
6.3. In case of the non-participation of a co-exhibitor, the registration fee is due in full amount.
6.4. Stands which are not recognizably set up at least 24 hours before the fair/exhibition, may be otherwise reassigned, reconfigured, or can be customized within regards to the overall appearance. The exhibitor, nevertheless, owes the full participation fees as compensation for losses suffered by the organizer. In the case that no other interested exhibitor can be found due to time constraints, the design of the stand is carried out at the expense of the exhibitor.
6.5. If the exhibitor, due to circumstances that neither the exhibitor nor the organizer is responsible for (force majeure), does not participate, the participation fee shall be reduced by half.
7. STAND DESIGN
7.1. Exhibitors are entitled, after consultation, to build up their own exhibition stand. The exhibitor is responsible for the design of the stand in compliance with all terms and conditions (see paragraph 1.2.). The exhibition stand must conform to the overall plan of the fair/exhibition.
7.2. The stand must be properly equipped, staffed by qualified personnel and kept accessible for visitors during the entire opening times of the fair/exhibition. Foreign stands may not be entered without permission outside the daily exhibition opening times. Premature deconstruction of the stand is not permitted, and is punishable by a penalty of at least 50% of the participation fee.
7.3. The exact times, as well as the precise organization of setting up and dismantling, as well as delivery and collection will be given to the exhibitors by the organizer in a timely fashion. These are binding. Moreover, the exhibitor is responsible for ensuring that necessary approvals for their activities are available and the applicable trade and competition laws, as well as health, fire and police regulations are fulfilled. It is strictly prohibited to setup and/or take down stands during the fair/exhibition opening times. In case of violation, an amount of 500€ will be charged.
7.4. Earlier setup and later takedown times must be requested and approved in advance.
7.5. A change in the allocated space is not permitted without prior authorization.
7.6. Exhibitors are responsible for the timely teardown of the stand. After the agreed period of dismantling, all obligations of the organizer terminate. For goods still located on the exhibition grounds – even those that have been sold to a third party during the fair/exhibition – the organizer rejects any responsibility. The organizer is entitled to demand a removal fee at an appropriate level for all not dismantled and removed fair/exhibition goods on exhibition ground; the organizer is also entitled to remove and store exhibition goods immediately at the expense and risk of the exhibitor, executed by a suitable company.
8. SALES REGULATION
8.1. Over-the-counter sale is only allowed for products registered and confirmed by the organizer and according to relevant regulations. The right to sell food and beverages for immediate consumption is only allowed for vendors who are entitled to do so by the organizer.
8.2. The exhibitor agrees not to issue, sell or give away any kind of illegal substances. In case of violation, the person will be removed from the exhibition and will be liable for all costs and/or consequential damages. A refund will not occur.
9. SECURITY / CLEANING
9.1. The organizer is responsible for the general security of the location and halls without liability for loss or damage. The exhibitor is responsible for the supervision and guarding of the stand. This also applies during setup and teardown times. It is recommended to keep valuable and easily removed items under lock and key. Outside of opening times, the organizer is not necessarily responsible for the general guarding of the fair/exhibition grounds. If exhibitors desire stand security, they must hire a security firm designated by the organizer. These costs will be borne by the exhibitor.
9.2. The organizer is responsible for general cleaning of the location and the exhibition hall aisles. Stand cleaning is the responsibility of the exhibitor, it must be completed each day before the event.
9.3. If after stand teardown has completed, rubbish or other items have been left behind, the organizer is entitled to have this eliminated and destroyed at the exhibitor’s expense, plus a surcharge of 25%.
10. ADVERTISING AT STANDS / ON EXHIBITION GROUND
10.1. Exhibits, printed paper and advertising materials may be displayed only within the rented stand but may not be distributed in the aisles or other exhibition grounds. Comparative and superlative advertising is not allowed in Germany.
10.2. The organizer is entitled to prohibit the distribution and display of advertising materials which may give cause for complaint and to confiscate the supplies of such advertising materials for the duration of the event.
10.3. Optical, mobile and acoustic advertising and product presentations are permitted, so long as they do not disturb neighboring stands, and must not drown out the fair/exhibition’s own announcement system. If necessary, the exhibitor is obliged to assure licenses or registrations (e. g. GEMA), and shall be liable for themselves. Organizers may intervene and require alterations in case of violation.
10.4. Carrying or driving around advertisement media as well as the distribution of printed media and samples outside the rented stand is possible only with permission by the organizer. Moreover, approaching and interviewing visitors outside the stand is strictly prohibited. Such requests must be made in written form to the organizer.
11. TECHNICAL SERVICES
The individual lighting of exhibition stand is the responsibility of the exhibitor and must be applied for separately. The costs for the installation of water, electricity and telecommunications connections for individual stands and other services will be charged to the exhibitor (main exhibitor). The organizer is entitled to demand appropriate payment in advance. Installation may only be carried out by the organizer. Within the stand, installation may be carried out by outside contractors who are to be nominated to the organizer on request. The organizer is entitled, but not obliged, to inspect installations. The exhibitor is liable for the damage caused by the installations. Connections, machinery and equipment, which are not authorized or do not comply with the relevant provisions can be removed at the exhibitor’s expense.
12. LIABILITY AND INSURANCE
12.1. The organizer insures the event against liability. The organizer is not liable for damage or loss of exhibition goods by theft, fire, storm, water and in other cases of force majeure. It is recommended that each exhibitor himself acquires such insurance at their own expense.
12.2. The organizer is only liable in case of intent or gross negligence of its team or of its senior staff.
12.3. In the case of negligent breach of contractual or pre-contractual obligations, or the liability for any breach of these obligations by its agents and/or employees, the organizer shall be liable only up to maximum of double the participation fee, if the organizer did not act intentionally or at gross negligence in the selection of the person appointed.
12.4. The liability of the organizer due to other reasons is excluded. The organizer is, in particular, not liable for the exhibits of the exhibitor.
12.5. Damage must be reported immediately to both the police and the organizer. Compensation for damage is excluded if, due to exhibitor’s late notification of claim, the insurance of the organizer rejects the takeover of damage.
12.6. The exhibitor is liable towards the organizer for any damage culpably caused by them, their employees, their representatives or their exhibits and/or equipment. Each exhibitor is obliged to purchase appropriate insurance with a German insurer.
13.1. The organizer is entitled to cancel the fair/exhibition, change location, time or duration or – if space conditions, police instructions or other compelling circumstances require – to relocate, change and/or limit assigned exhibition space if necessary. A change in location and/or time and/or any other changes are part of the contract when sent to exhibitors.
13.2. The exhibitor has the right to cancel the fair/exhibition, if the expected minimum number of registrations is not reached and the unchanged implementation is not economically reasonable. There is no right to claim damages from the organizer.
13.3. If the fair/exhibition does not take place due to reasons not indebted by the organizer or due to force majeure, the organizer can demand an amount of up to 25% of the participation fee from the exhibitor. If the exhibitor has ordered additional chargeable services, they can be charged to the exhibitor as well.
13.4. If the organizer needs to shorten the fair/exhibition due to force majeure or for reasons not indebted by him, the exhibitor is not entitled to request the reimbursement of full or partial participation fee.
14. EXHIBITOR PASSES
The number of free exhibitor passes depends on the size of the stand and can be determined from the exhibitor service manual. The number of exhibitors’ passes does not increase by the inclusion of co-exhibitors. Additional exhibitors’ passes are chargeable. The exhibitor passes are exclusively for the exhibitor, their stand staff and representatives. They must be carried at all times and presented to the entry control staff on demand. These passes are non-transferrable. They are issued on site at the fair/exhibition office or sent upon prior request to the fair/exhibition. In case of misuse, the passes will be withdrawn without replacement.
Any complaints regarding defects of the stand or exhibition area have to be reported to the organizer immediately after occupation in written form, but not later than the last day of build-up, so that the organizer can remedy the deficiencies he is responsible for. Later complaints cannot be considered and cannot lead to claims against the organizer. Exhibitors will be invoiced for later complaints, because it must be assumed that those are self-inflicted by the exhibitor, whose personnel or their representatives.
16. HOUSE RULES
During the entire fair/exhibition, the exhibitor shall comply with the domiciliary rights of the organizer on the fair/exhibition ground. Instructions by the organizer or his representatives have to be followed. Violations of these participation conditions or instructions taken under domestic authority entitle the organizer to close the stand immediately at exhibitor’s expense in case the infringement are not terminated after request. The instructions of competent persons (e.g. fire safety guard, building services, paramedics, police etc.) must be complied with. The organizer is entitled to take photographs, drawings and films of the exhibition, the exhibition stands and the exhibited items, and to use these for advertising and press releases without the exhibitor being able to object for any reason. This also applies to pictures taken by the press with the authorization of the organizer.
17. SMOKING BAN
In the exhibition rooms, the general ban on smoking must be followed. Smoking is permitted only in designated and marked areas. Exhibitors are also liable for compliance with the smoking ban by the visitors on his stand. Should visitors contravene, this must be reported to the staff of the organizer immediately. The exhibitor is liable for all damages incurred by the organizer by the failure to comply with the smoking ban.
18. FINAL PROVISIONS
Subsidiary agreements, changes and supplements require written form. This also applies for the written form requirement itself. The law of the Federal republic of Germany is applicable. If the jurisdiction clause is valid, the place of jurisdiction is Berlin, Germany. If individual regulations of these general terms of conditions become void, this shall not affect the validity of the rest of the regulations. The same shall apply to any gaps in the contract. In these cases, the invalid provision or gap in the contract is replaced by a valid provision that comes closest to the economically intended purpose.