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 0xd7ff1a7db3191d8cf1441f98e27a573f2f665a89ae15a2d54676e596369b4eb3. 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/4f92ae55-df5a-4b4a-b156-b548f2168b4d.json and https://artists.proofprofile.net/proofs/artist/4f92ae55-df5a-4b4a-b156-b548f2168b4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xd2d55cb9021552c3cdc423d0a49f2ddf1ca84d564a5a7c99cb8da5998ed231b6","isrc":"QZHNC1967199","name":"Outta There","registered_at":"2026-06-29T10:18:26Z","spotify_id":"2PqlnEGImOAjZGfOSwPGVc","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 0xd2d55cb9021552c3cdc423d0a49f2ddf1ca84d564a5a7c99cb8da5998ed231b6. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2PqlnEGImOAjZGfOSwPGVc.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/2PqlnEGImOAjZGfOSwPGVc.
{"copyright_id":"0x8a95c8b9c1cd86f2f24b5062e42fbf533baee0ca569ebc8e37d00166d47d41f7","isrc":"USSM12101692","name":"Walkin On Water","registered_at":"2026-06-17T23:57:32Z","spotify_id":"7yaXZuP9mItUWEvVXhdxo7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a95c8b9c1cd86f2f24b5062e42fbf533baee0ca569ebc8e37d00166d47d41f7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7yaXZuP9mItUWEvVXhdxo7.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/7yaXZuP9mItUWEvVXhdxo7.
Addicted to Finessing (feat. Retro Messiah)
Westside (feat. Isaiah Falls) [Interlude]