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 0x7490a5817ea65c43319cabbbede4f9f95613141cd98c4f36b8d57ac0467d979e. 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/007fb882-d0cf-470c-8bb7-eb75f0de78c1.json and https://artists.proofprofile.net/proofs/artist/007fb882-d0cf-470c-8bb7-eb75f0de78c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tennessee Love Song (feat. Chase Matthew) - Remix
{"copyright_id":"0x3144ae093e2beb32a71339c4d2c83e06a3ed087901e8baf452b34662f799d11b","isrc":"USUM72406307","name":"Boujee Lennons (feat. 2 Chainz)","registered_at":"2026-06-05T15:08:09Z","spotify_id":"6NJ7MfZt7xdzIRNh3tbuYO","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 0x3144ae093e2beb32a71339c4d2c83e06a3ed087901e8baf452b34662f799d11b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6NJ7MfZt7xdzIRNh3tbuYO.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/6NJ7MfZt7xdzIRNh3tbuYO.
Willing To Let You Go (feat. Anella & Abby Anderson)
Diplo Presents Thomas Wesley: The Mixtape
{"copyright_id":"0x72b4013288332f45825882c3da0ff8f3aa71cebdb258f00d7deec56282344721","isrc":"USSM12403466","name":"Willing To Let You Go (feat. Anella & Abby Anderson)","registered_at":"2026-06-05T07:26:27Z","spotify_id":"7C6ct6e0PmdJuLUar0cW90","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b4013288332f45825882c3da0ff8f3aa71cebdb258f00d7deec56282344721. 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/7C6ct6e0PmdJuLUar0cW90.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/7C6ct6e0PmdJuLUar0cW90.
{"copyright_id":"0x590c9d7f3c5df8c26ab895bea04aed31d8ca07da784d36e1643e8cb4497bddfd","isrc":"TCAFN2124492","name":"My Demise","registered_at":"2026-06-08T22:51:36Z","spotify_id":"5i4dD3tQAOVe8NwcRNtxT0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590c9d7f3c5df8c26ab895bea04aed31d8ca07da784d36e1643e8cb4497bddfd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5i4dD3tQAOVe8NwcRNtxT0.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/5i4dD3tQAOVe8NwcRNtxT0.