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 0xa15559e0c5dd6ce11131c5fe48f2a3872f36dbfc388e5bcc93003450f61e598f. 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/78c73baa-e40e-46d4-954e-5b5a76899613.json and https://artists.proofprofile.net/proofs/artist/78c73baa-e40e-46d4-954e-5b5a76899613.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xffa9d7837d6b41d0551dce0f0776bc459fc56c6a801b54d19b0e0162affccdae","isrc":"UK43Q2496329","name":"La Liga","registered_at":"2026-06-28T19:19:01Z","spotify_id":"1FRN6Z7hnTvEQfyzqquVFS","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 0xffa9d7837d6b41d0551dce0f0776bc459fc56c6a801b54d19b0e0162affccdae. 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/1FRN6Z7hnTvEQfyzqquVFS.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/1FRN6Z7hnTvEQfyzqquVFS.
HKD Festival 1st Edition Show (Live) Freeman HKD with HKD Band
Patichaita Mari/ Zvakaipa Itai Ndisiye (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399c4754dcfae06f6240e58f8a29aa05d9ed0679f52d77a334cb49acf9b0a593. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4fiArvsvYXb1jkwU7y8h71.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/4fiArvsvYXb1jkwU7y8h71.