Kerber may refer to: Kerber (surname), including a list of people with that name Kerber (band), a Serbian rock band
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48d29d0dc6818e16d1e6d0eaf93a31c4f93d28180b29b968f36704088ec98de. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15f34f03-7fb5-402d-91e8-41299cb47ac5.json and https://artists.proofprofile.net/proofs/artist/15f34f03-7fb5-402d-91e8-41299cb47ac5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b57043a59698e6684a9901fba022811e95c90b627c856c1f6058241d6ead43e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda238953f22fa36b01cb7f9a5b4ad74e893f448f27486a040cadc877aa77f19b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3bfa79386ca65eb84b156ca204551a95d73561db2a2029072ea439f7608c92. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe997fe64de740ed6b56c52834de3e028f1f0d1184bf102c93846c613e0bf1b0b. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA042500286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d9bebb9f036f772cef2f84a18db1a10a3856a2fda48278e360efd97b017c53. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700398.
Tri Boje Zvuka (Live at RTS Studio 8, 2015)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b57043a59698e6684a9901fba022811e95c90b627c856c1f6058241d6ead43e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda238953f22fa36b01cb7f9a5b4ad74e893f448f27486a040cadc877aa77f19b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3bfa79386ca65eb84b156ca204551a95d73561db2a2029072ea439f7608c92. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbb772d40565fb9026e70788b83be0e21a22b43a46f023e56fe8df187517cc0. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4dfa342184f4b2da35bf487df6c5643b297de57294dcc723325acf0077003f. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d9bebb9f036f772cef2f84a18db1a10a3856a2fda48278e360efd97b017c53. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65fd152a933f420f4f13e53bc0a38cd05abfe4f32ba76910c7abc548b25b59c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa226a2fee5f0d6d56e0a06fc15cdfe2de99107e7a4030e87636756cf927fd5eb. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd87faea14f1e52cc417148f8e36edf85e39fb5e2b44139fbaad7ca1da553bee. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e123a94cdcf77ce37136dcb5649e9a5ff249d97497b68570331871b9ec81b76. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA041700402.