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 0xd4071ad78afb607ceed7a7bac1f8bc1959af7c536a37c12e2b2cd76938a15a5e. 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/6eaf3e70-4977-479b-8153-a5c554274d73.json and https://artists.proofprofile.net/proofs/artist/6eaf3e70-4977-479b-8153-a5c554274d73.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x1c60ca5a9ba0766807187d59dbfd5fc2a895adbbff5acf16e690a970e463c794","isrc":"AULI01710740","name":"Moving Forward","registered_at":"2026-06-29T13:25:42Z","spotify_id":"3jc8gbIbOIdvbqtFspCBGS","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 0x1c60ca5a9ba0766807187d59dbfd5fc2a895adbbff5acf16e690a970e463c794. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3jc8gbIbOIdvbqtFspCBGS.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/3jc8gbIbOIdvbqtFspCBGS.
{"copyright_id":"0x1c60ca5a9ba0766807187d59dbfd5fc2a895adbbff5acf16e690a970e463c794","isrc":"AULI01710740","name":"Moving Forward","registered_at":"2026-06-29T13:25:42Z","spotify_id":"1hwKUmIvNvrEx7vy9VyYJ7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c60ca5a9ba0766807187d59dbfd5fc2a895adbbff5acf16e690a970e463c794. 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/1hwKUmIvNvrEx7vy9VyYJ7.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/1hwKUmIvNvrEx7vy9VyYJ7.
Babe, It's Just You And I (feat. Moreton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689dfeb08d3468cd80155c1a7c43d27f911f8ef676f2332b28cebb81c2d2f4be. 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/7dzCyGgcPHVlI3dAYtzpl3.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/7dzCyGgcPHVlI3dAYtzpl3.