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 0xf62abca741c14cee7547d5d050033d14b6f83597ad68e7a8d9135d8495326df5. 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/a9598ffe-eef2-4802-a139-90cf26f535ee.json and https://artists.proofprofile.net/proofs/artist/a9598ffe-eef2-4802-a139-90cf26f535ee.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 0x96d76463cfc13188abc311275770c9fe1d65b16c239f42b09d8a93f08a9ca03c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2LSbhdcLsrG5jDBSB0FG4b.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/2LSbhdcLsrG5jDBSB0FG4b.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2fe73667f9b70398affc8e93e01291acc1ec9a90ae790078dd20935c5423a3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7BY2HulRZnG2BrvnwcsohE.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/7BY2HulRZnG2BrvnwcsohE.
{"copyright_id":"0xf1740be6a363d1f38a2499fdca0caf000e377ac5809b7498d53a3adfbab4c174","isrc":"GBLFP1582965","name":"Null & Void","registered_at":"2026-06-07T14:26:45Z","spotify_id":"5xj0IEuHss2b3TVenA4Zmg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1740be6a363d1f38a2499fdca0caf000e377ac5809b7498d53a3adfbab4c174. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5xj0IEuHss2b3TVenA4Zmg.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/5xj0IEuHss2b3TVenA4Zmg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1456bfb2d89581838c2dab648a8fd057588a331a973d1b47c424d259d15d96ee. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/06rMsJ9gIZgEUauWY6uFCN.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/06rMsJ9gIZgEUauWY6uFCN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486e4eb60e94ca178efe308b73bf18c9d3420ca535aa7a7ba1d9b30c81dcfd20. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0PpR6NxJb9qDsFE11Bh5fT.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/0PpR6NxJb9qDsFE11Bh5fT.
Crakkin Open A Cold One Wit Da Lames - Instrumental
Cruisin' With the Lights Off - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1a253467bbf74de576934846390418f033a423dca3dc5f50cf9c56e5bdd78c. 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/2cIVyMe4btq5AIOUOjXFBM.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/2cIVyMe4btq5AIOUOjXFBM.