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 0xad5ddc07618da1a16fcae9053d7ce33aa2831291e7e316c04d352ba8c04fc9d7. 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/fb59e5e6-2901-4796-8149-e9e83067cec7.json and https://artists.proofprofile.net/proofs/artist/fb59e5e6-2901-4796-8149-e9e83067cec7.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 0x8d932f58333183c494ecc843b947e3801d478250c070fdc169ee7c188a0549a1. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/FR10S1428604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f48433adb1160b5ee189d022b3cf757905345cd152d6d4e4b2a66eed850576. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR10S1428606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91463c16677faee3605343a139c96db95663246adec06d26ca686172aef0ba37. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR10S1428609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d03e25973a5bfe7c7d1098a778b7c92a28f2af958a5aa92957f0c3960f6ee91. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/FR10S1428610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e60c174f99af0d69a4709cd33b3570195d7fe0c456a742c990ec2769f76cef. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/FR10S1428611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfd7dbd6c6cdad50e1607b12a0b7ce2746f8423d2060480846610a93d2709ae. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/FR10S1428615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05a2ec63e4fd859762218837ba2af81ea212696a503f305770b982037392404. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/FR10S1428616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9511800acb21cbcd767c1ae74345e656ff480d115117ce88ec23568dee6beae8. 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/FR10S1428617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7968566038dddc8ee6ad49473716a4d8af43442149d04885f56752c1f320560. Chain 2 (Bitcoin): anchored in block 957959 (2026-07-14T05:54:20Z), 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/FR10S1428618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93015165fd146a49896b570b943f7b95f50faab12b9dffd2023c068855cbf0b2. 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/FR10S1428620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796d0a4a183e3df8bd488f85624f3ab9372f06047d1b1ef7fc0b650a167d19c6. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/FR10S1428622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31c6773b5ceeda4fb5d0b0687dcb704cb3e5935e5d24d7b3db144749912cc09. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR10S1428551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f76b6e72befb91ac9067c20af10acdf546404778402c4409ece9e6512766d2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX281719250.
Te mendoj per ty eshte kot (Piano Version)