1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x4b7199ac99498ae6a296810b9e031c3ea13bf240ceca4fcf6fefbb7fe39b227e. 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/518c4a9b-74da-4df4-822c-5d35c6fef068.json and https://artists.proofprofile.net/proofs/artist/518c4a9b-74da-4df4-822c-5d35c6fef068.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Benny Goodman Trio Plays for Fletcher Henderson Fund (Live, Mono Version)
Boy Meets Goy (Grand Slam) (Boy Meets Girl)
Essential Classics, Vol. 663: Benny Goodman Trio
After You've Gone - 1996 Remastered - Take 1
{"copyright_id":"0x2e2aa7f27edd4097a574a964eae33b28f61a2ed64e4c9129eccdedff46191e6b","isrc":"USBB19601117","name":"After You've Gone - 1996 Remastered - Take 1","registered_at":"2026-06-09T07:58:41Z","spotify_id":"29wNYPnMuJCq5988Li9xdV","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2aa7f27edd4097a574a964eae33b28f61a2ed64e4c9129eccdedff46191e6b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/29wNYPnMuJCq5988Li9xdV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/29wNYPnMuJCq5988Li9xdV.
{"copyright_id":"0xe36748b281a731fbe059060c19ed07c467b5e993b17a699c2f8e8bffba7ec552","isrc":"USBB19601122","name":"Someday, Sweetheart - 1996 Remastered","registered_at":"2026-06-11T18:36:39Z","spotify_id":"1Syo7rferE8WGfIPgYuDZe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36748b281a731fbe059060c19ed07c467b5e993b17a699c2f8e8bffba7ec552. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Syo7rferE8WGfIPgYuDZe.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Syo7rferE8WGfIPgYuDZe.
Silhouetted in the Moonlight - 1996 Remastered
{"copyright_id":"0x723ec4c662c6f7e04f6d04b95ff2a40bd401d7c465648ac0658f9e464fb8250c","isrc":"USBB19601119","name":"Body and Soul - Take 1","registered_at":"2026-06-29T18:56:13Z","spotify_id":"4sNbmTCyF7XNfZyals3tKu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723ec4c662c6f7e04f6d04b95ff2a40bd401d7c465648ac0658f9e464fb8250c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4sNbmTCyF7XNfZyals3tKu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4sNbmTCyF7XNfZyals3tKu.
The Legendary Small Groups (Bluebird's Best Series)