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 0x7f3055ebdf0947bc4ea32f083a3f67192ea23b245d1aa8b8b1c99a4a9a2ad7e1. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17603931-3d07-4ec4-ac8c-d4872cf4c360.json and https://artists.proofprofile.net/proofs/artist/17603931-3d07-4ec4-ac8c-d4872cf4c360.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Music from Giant (Original Motion Picture Soundtrack)
Test Flight: The Spirit of St. Louis (Original Motion Picture Soundtrack)
Sayonara (Original Motion Picture Soundtrack)
Secret Love (with Ray Heindorf & Warner Bros. Orchestra)
The Complete Columbia Singles, Volume 6 (1953-1957)
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 0x53a29bf3fc4d0f5af5623b978d1f2f59c796a94d0f41338d61bfc1dd6a3407ad. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM15300268 — a six-check JSON result.
The Deadwood Stage (Whip-Crack-Away!) (with Ray Heindorf & Warner Bros. Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664ed16809750b0b5059567c211261c7d021a605e20052eb034e9b339493f52d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10019606 — a six-check JSON result.
Sings Songs From The Warner Brothers Pictures Calamity Jane & The Pajama Game
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a29bf3fc4d0f5af5623b978d1f2f59c796a94d0f41338d61bfc1dd6a3407ad. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM15300268 — a six-check JSON result.