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 0x242c672b615674213aad389ab5fcebd0fce79d9f6c3e33b71495cbacc89b0246. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d71e3e11-7df5-430e-a097-83a6e38efaab.json and https://artists.proofprofile.net/proofs/artist/d71e3e11-7df5-430e-a097-83a6e38efaab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gentle Man (A Song Commissioned – J to P)
Gentle Man (A Song Commissioned - J to P)
Gentle Man (A Song Commissioned - J to P) - Single
Jensen Sportag: A New Anthology From Cascine
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 0x716b6f72379f6dc8c68180727aeba857c474a59722ad93545f097352e1bf3eb8. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:35:55Z), 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/QMB622318603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7db61d3dbeb259c5cf835652d1b6d2fc95668e97be1229c2178b699e3cb57c. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:55:48Z), 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/QMB622318607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c40a62b97327fb98cb4163b1dccf26d222b1bcc2a230960b51a52cf28313817. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:35:29Z), 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/QMB622318611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc625030d18ae0b02c0b407142d3d5317baf24f74f3d2ac7a427bb4a7915689a3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMB622318612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d0ae4778faaa87a4e70e8624c5623d9ce2c7c6340ffc1129f8414e60677b9e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USY242443138.