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 0xcdf9d6501d5642b0e192431d8d1f3953fb77cfec5ef77a46777f3b376a63f981. 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/6945a05c-bce5-4f6c-ba83-d7cda4763810.json and https://artists.proofprofile.net/proofs/artist/6945a05c-bce5-4f6c-ba83-d7cda4763810.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x37618b4726b105614c4eeaf3159567cf866cffa291d4a5a8b5b82ffc5dc5fe52. 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/2nV0M4omydjsfL6wfGzXmf.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/2nV0M4omydjsfL6wfGzXmf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a93338e5109d58d3110475c6be870b12f37206572a5f0665f6ef3fba5adf6e. 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/2Jt7jLFt137aOabAnrpwLb.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/2Jt7jLFt137aOabAnrpwLb.
POOTIE TANG FREESTYLE (feat. Nate Husser)
{"copyright_id":"0xd1d6c2ea3fcbbe0ab16ee9951776d6f3290ed481d72b9dd9f90e003acb22fc9e","isrc":"US38Y2408427","name":"Borderline (feat. Luclover)","registered_at":"2026-06-18T04:51:56Z","spotify_id":"7ktMBGuRKpJLs24WIQwFph","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d6c2ea3fcbbe0ab16ee9951776d6f3290ed481d72b9dd9f90e003acb22fc9e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7ktMBGuRKpJLs24WIQwFph.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/7ktMBGuRKpJLs24WIQwFph.