Nick may refer to: People and fictional characters Nick (given name), a list of people and fictional characters Désirée Nick, German actress and writer Places Nick, Hungary, a village Nick,
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 0x0c17ea42aa1784c690e7ebffbb55fe12d384f55de7f75bee8a5281dd0e6169c2. 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/ff5f1af1-f7c0-43a1-b2fb-4e91d3eca601.json and https://artists.proofprofile.net/proofs/artist/ff5f1af1-f7c0-43a1-b2fb-4e91d3eca601.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 0xf57697ac76a882fd431a8b315913aa6b5634d17ea57b86cdbf0ed0d7ceadb0ef. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BKNU22400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba62d55dd70ca39a48eb739a21d428020c7a22ecf1b3c12bbc63e8f2434825e8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BKNU22400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cde52e906ff32711bfed72ead50a758f0fa31412d84f82a127599fcfea96d52. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKNU22400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9235d3d95cb715236392e2ffc3b1f1cc158377972be5567733931bdaca231004. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BKNU22400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952dc402be7fc0586241a8197e642d4cde30cd435497dc10ff2b0d2ae825fccb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BC3PG2300929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe273e816a329c8efe1491499acf6280c5224c5fd72246c86fa9d95ac27d63b0b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCLWS2300252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010fedffc1653a530934a742b6644637ad8d2a4cc6d47a8684d4024ad12451e7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCLWS2404261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f29ee4ef54824eecdc46b697a994e694c7a1cd4b6913244a2d468b7f0e294a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCLWS2404260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2ccfdda1d216660516ad514b5ce55d38ccb2001be3eb57d8a6140442cfd9ef. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BKFUX2301774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc4934162d8672249fd107c533745c3ad5333a0a65a00d93eeb9f8731875ec6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZW9K2438630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08466e8869c73694d6f852e0bb597011d989112204fd80b4d0a513f48fa1e19. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BCDE52400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa495d5010fe1ac1c8a19e736eda751da376e60d081cd44a036c5b6913ad0f85c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM6P42469922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0bd4666b618be9d59e67d4039ba0e9963a8845a317f296e8eb6f0ad03dced5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKDFK2400453.