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 0xa336eea828fcbc2d53bbf65e7ec316d8ebe9a02a877e667e7298536e5aad2632. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b09dc291-9dc4-4223-aaa8-b4b5bc6eed30.json and https://artists.proofprofile.net/proofs/artist/b09dc291-9dc4-4223-aaa8-b4b5bc6eed30.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xb3086c8af3deca2308ed1f15e18f1fd0d59f9829add29654a973d6991b9b3c05. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3vIGrr7V0lOLIooyLdMUUb.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/3vIGrr7V0lOLIooyLdMUUb.
Heavenly Father, Lord Above, Welcome Me Into The Gates Of Eternal Paradise
Heavenly Father, Lord Above, Welcome Me into the Gates of Eternal Paradise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8699b7962ffefc869faac3eebe123b4d7d03b3903ce61461ddd18668dcab667. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Pc6Lt5Fh19ZgUmI1iP9OG.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/1Pc6Lt5Fh19ZgUmI1iP9OG.
{"copyright_id":"0x4b3572ba21a0d83ca02d1d7b0ca1f1ad878d84a91b3ed520f0e7b4f4796baa84","isrc":"TCACT1667071","name":"Spirals - William Black Remix","registered_at":"2026-06-09T17:06:21Z","spotify_id":"3QJzHLuI4vd1dBmLCBnbmO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3572ba21a0d83ca02d1d7b0ca1f1ad878d84a91b3ed520f0e7b4f4796baa84. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3QJzHLuI4vd1dBmLCBnbmO.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/3QJzHLuI4vd1dBmLCBnbmO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e09db177671e1dc7b6997700da1fe39f2f98e1f4fab2ec6319683609107b73b. 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/35VlR5IUsVMhDyDeXfKboK.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/35VlR5IUsVMhDyDeXfKboK.
{"copyright_id":"0x750bbaf1bf1a19db2dd591676f8d1e3743fdce0fc03067709bfb67365ad2fb57","isrc":"CA6D21400050","name":"Turbo Penguin","registered_at":"2026-06-06T12:09:55Z","spotify_id":"3cKpKxz7JOZsCf4C2rRB5K","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750bbaf1bf1a19db2dd591676f8d1e3743fdce0fc03067709bfb67365ad2fb57. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3cKpKxz7JOZsCf4C2rRB5K.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/3cKpKxz7JOZsCf4C2rRB5K.
{"copyright_id":"0x750bbaf1bf1a19db2dd591676f8d1e3743fdce0fc03067709bfb67365ad2fb57","isrc":"CA6D21400050","name":"Turbo Penguin","registered_at":"2026-06-06T12:09:55Z","spotify_id":"5tp5qNZOErj9FKNMA4FFwl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750bbaf1bf1a19db2dd591676f8d1e3743fdce0fc03067709bfb67365ad2fb57. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5tp5qNZOErj9FKNMA4FFwl.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/5tp5qNZOErj9FKNMA4FFwl.