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 0xc4e2aa0ce9d74880fa64edf6ccb57fcead5e7a9549080201e14f50780fb651be. 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/122fb59e-fc88-4335-b09f-16a62301eb25.json and https://artists.proofprofile.net/proofs/artist/122fb59e-fc88-4335-b09f-16a62301eb25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xb6ecf5b325d36d1b5e14869fb8c0f9e0841300addcfe98036f37f20b92d2e0d8","isrc":"GBUM71400017","name":"I Can Feel","registered_at":"2026-06-28T20:00:22Z","spotify_id":"2SGOrrPWJyyROvqjGmLT1m","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 0xb6ecf5b325d36d1b5e14869fb8c0f9e0841300addcfe98036f37f20b92d2e0d8. 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/2SGOrrPWJyyROvqjGmLT1m.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/2SGOrrPWJyyROvqjGmLT1m.
Creation - Live In The Engine Room, London / 2014
Believe In Me - Live In The Engine Room, London / 2014
Kings - Live In The Engine Room, London / 2014
Christmas with the Pierces (A Live Performance)
Rockin' around the Christmas Tree (Live)