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 0xf2dea1725ec1021362eeadd0ccd33a199d81ac957f78b4fc706be52b65ed9c56. 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/a1a28e96-3620-41c6-a96b-2b4e537dae47.json and https://artists.proofprofile.net/proofs/artist/a1a28e96-3620-41c6-a96b-2b4e537dae47.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Once Upon A Grind (feat. Drizzy, Hustle & C-Note)
{"copyright_id":"0x71a753c66e0f604a065d4990b0b5dd5d649d9fce86adfa9c9f610f409df8dc68","isrc":"QZ5AB1853671","name":"If We Fall in Love","registered_at":"2026-06-29T09:56:12Z","spotify_id":"2LVCbyzTqRbRB6Ova2dPqz","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 0x71a753c66e0f604a065d4990b0b5dd5d649d9fce86adfa9c9f610f409df8dc68. 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/2LVCbyzTqRbRB6Ova2dPqz.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/2LVCbyzTqRbRB6Ova2dPqz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22381d6ea04c6c536efbc0b2e0546f99e7fd9711670c6bd7b6017302de75e0d3. 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/19dMuT4aAO091laEVqWA9a.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/19dMuT4aAO091laEVqWA9a.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2446856ce9deda4df52508af413602e241e6b6dfe9a4c46c523951569ab3e2c. 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/4fLzTZijMpvoz0JV82zkH6.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/4fLzTZijMpvoz0JV82zkH6.