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 0x7e6c0504d970b4741dc668ea5f7fd6aeb3597853d891724ae2696c7e68b6e88c. 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/f7dcd74c-75e5-4ad3-a658-575c75f9d4e2.json and https://artists.proofprofile.net/proofs/artist/f7dcd74c-75e5-4ad3-a658-575c75f9d4e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x248f514ef83a3c11f57d63b141231c39b1ad0ad40ba11d201eea71bba570d5b2","isrc":"UKACT2330358","name":"What Is Real","registered_at":"2026-06-20T12:53:23Z","spotify_id":"2LVZY7GuWXxzhfhaCBzG9A","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 0x248f514ef83a3c11f57d63b141231c39b1ad0ad40ba11d201eea71bba570d5b2. 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/2LVZY7GuWXxzhfhaCBzG9A.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/2LVZY7GuWXxzhfhaCBzG9A.
Steyoyoke Perception, Vol. 10: Desillusion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920e5761b12efa5b76a13e039eb12587f6e529bb78f8d29382aa7a514646dddf. 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/1c2R1gsqqBIlJDnONyctCk.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/1c2R1gsqqBIlJDnONyctCk.
{"copyright_id":"0x14bdfec18d9eca0f62079d12edfc6bff96e69ee8ca0e5d6eb4d7847e23fb3164","isrc":"US83Z2478210","name":"The Reality","registered_at":"2026-06-11T14:06:15Z","spotify_id":"5i12OvEL6mbSF6VQu1Fkbd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bdfec18d9eca0f62079d12edfc6bff96e69ee8ca0e5d6eb4d7847e23fb3164. 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/5i12OvEL6mbSF6VQu1Fkbd.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/5i12OvEL6mbSF6VQu1Fkbd.