{"copyright_id":"0x27ca734a46feb87b70561367bc0b8a1e619ff235be18c3d728eab503baadcfc5","name":"Giora Feidman Sextett","registered_at":"2026-06-15T01:46:20Z","symbol":"NIM0643409","token_address":"0xce0fdc588f0903acd7a9f7ac44f150c111ceadaa","type":"artist","uuid":"cb0f0d8f-894a-4bb9-adaa-67406eacacb5"}
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ca734a46feb87b70561367bc0b8a1e619ff235be18c3d728eab503baadcfc5. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb0f0d8f-894a-4bb9-adaa-67406eacacb5.json and https://artists.proofprofile.net/proofs/artist/cb0f0d8f-894a-4bb9-adaa-67406eacacb5.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f9b8fa0272330ced5dfc13293282568b745318f1ed134682ed4b217f2ba8cb. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:40:48Z), 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/DEYT92301296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d40fb9bdd0fd2474008172c161179df171f72cfe60b2f65ab59aa71871f115. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DEYT92301297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097c01113cc4a87e6cd97c7296f6068131436ddfad12882ec40a1911f6503508. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEYT92301300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e15ef24a9b6db6ac803482d221e97d10e4245149abaab6a60be8f998f5bd89. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:48:41Z), 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/DEYT92301303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cccc4663a62db46bfd3b034fb052f98d5be7d8c5486e1dd29ada2075729e7da. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEYT92301311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f9b8fa0272330ced5dfc13293282568b745318f1ed134682ed4b217f2ba8cb. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:27:57Z), 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/DEYT92301296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5cd43bbade62731748c096ca68465485f4e3e1a68a0518859b718b6123473e. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/DEYT92301299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33d26e60893266e27e96ae78c7f88eee96e0bd03da9d7b6ee556ab4a3d0b00e. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:16:54Z), 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/DEYT92301301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cccc4663a62db46bfd3b034fb052f98d5be7d8c5486e1dd29ada2075729e7da. 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/DEYT92301311.