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 0x2e8fb9c135b9780f0e4451faa73aa4ffd41a1157691de90efebc970c0a58d262. 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/89a02440-21d1-4407-b522-160a34c8d07f.json and https://artists.proofprofile.net/proofs/artist/89a02440-21d1-4407-b522-160a34c8d07f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Tiempo del Silencio - Rerecorded Version
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 0xb9a53a64e2f4f706af743beecc760d335ddac1c7f1477bd364e5de7b1c8eafe9. 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/2YA3RGYuXPsuVy2tQOa0cf.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/2YA3RGYuXPsuVy2tQOa0cf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eecb0542b7e30fca9f11cca7fe59244ab4ac570a3309a84b206d5f0fb844974. 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/0Cmc4QAS2Hb6TfkLZFrgX0.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/0Cmc4QAS2Hb6TfkLZFrgX0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59eb73ef601deb1f8b18818bf2db078146a5981ba49102ce9c48888afd48a8b. 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/0Ryshb3D6BVfHvfqcRnGVa.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/0Ryshb3D6BVfHvfqcRnGVa.
{"copyright_id":"0x73b5875760febbadf8660a19acb6d8f4aec5f510e1b92737830caeec297b2166","isrc":"QM6P42200312","name":"Todo Chill - Remix","registered_at":"2026-06-11T17:05:50Z","spotify_id":"5teCqgzzDqtHEjdSWOafTJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b5875760febbadf8660a19acb6d8f4aec5f510e1b92737830caeec297b2166. 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/5teCqgzzDqtHEjdSWOafTJ.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/5teCqgzzDqtHEjdSWOafTJ.