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 0x37b580f56a904c1ffc9e9e4785433d90638f6964f35dddd7f6e46355707d1f01. 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/43dad148-0e5a-48ba-a74e-ad76ae7225e1.json and https://artists.proofprofile.net/proofs/artist/43dad148-0e5a-48ba-a74e-ad76ae7225e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Off The Board: A Studio 4 Family Compilation
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 0x7f325879884e5e63c4eea9b677397a5c0c2d604af2fd9997b83a1995aa4e35fb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/03PIBcWTL7uDcq2HSRvb7u.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/03PIBcWTL7uDcq2HSRvb7u.
{"copyright_id":"0x71da0a29769a067b09c008b0c8e7b59b07edd484c70f34e5f7ca47278c7e94da","isrc":"USUM72409316","name":"GO AGAIN (feat. Superheaven)","registered_at":"2026-06-01T16:10:42Z","spotify_id":"2cNTMTh42p1dwMS3Kaea8E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71da0a29769a067b09c008b0c8e7b59b07edd484c70f34e5f7ca47278c7e94da. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2cNTMTh42p1dwMS3Kaea8E.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/2cNTMTh42p1dwMS3Kaea8E.