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 0xe4a3a532fd22b3e28743c3f17d44ee83a1d946e4660deca86fd8a21a20600f9d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e208f85b-53a0-4236-bafd-8b08cc56949a.json and https://artists.proofprofile.net/proofs/artist/e208f85b-53a0-4236-bafd-8b08cc56949a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Uh Huh - Recorded at Metropolis Studios, London
Walk Like An Egyptian - Recorded at Metropolis Studios, London
Find A Way (from the Netflix Film "NYAD")
{"copyright_id":"0x7b0a8be708f152bb81cf8282358479b8ae4d2d815a0b9548e6b9917a42d9a606","isrc":"QMFMF2394777","name":"Burn The Hard Drive (feat. Mura Masa)","registered_at":"2026-06-06T16:07:21Z","spotify_id":"2YK4w5AUbAyjgdokQuCzoj","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 0x7b0a8be708f152bb81cf8282358479b8ae4d2d815a0b9548e6b9917a42d9a606. 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/2YK4w5AUbAyjgdokQuCzoj.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/2YK4w5AUbAyjgdokQuCzoj.
{"copyright_id":"0x7b0a8be708f152bb81cf8282358479b8ae4d2d815a0b9548e6b9917a42d9a606","isrc":"QMFMF2394777","name":"Burn The Hard Drive (feat. Mura Masa)","registered_at":"2026-06-06T16:07:21Z","spotify_id":"0NcSwjMDmstHIqrd5CL0sZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0a8be708f152bb81cf8282358479b8ae4d2d815a0b9548e6b9917a42d9a606. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0NcSwjMDmstHIqrd5CL0sZ.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/0NcSwjMDmstHIqrd5CL0sZ.
Folk It: New Folk, Alternative, Indie Roots Rock