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 0x3df59336f78fd0ced40aa60e6a99396180194371408113792c5aabae02e6c02d. 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/ce2ca10d-dbfd-4f2e-9e86-b0bf8f010cbd.json and https://artists.proofprofile.net/proofs/artist/ce2ca10d-dbfd-4f2e-9e86-b0bf8f010cbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Like We Were Dreaming All This Time, Pt. 1
Like We Were Dreaming All This Time, Pt. 2
{"copyright_id":"0x49d84e00a85fa3e0c9472d7dd90548840911a99d667acbb4ef62ed918ba3d046","isrc":"CAN112201156","name":"Postcards for the Backyard","registered_at":"2026-06-28T21:37:21Z","spotify_id":"66de1fjUiP9a34bBByBUPf","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 0x49d84e00a85fa3e0c9472d7dd90548840911a99d667acbb4ef62ed918ba3d046. 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/66de1fjUiP9a34bBByBUPf.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/66de1fjUiP9a34bBByBUPf.
Like We Were Dreaming All This Time, Pt. 1 - Alternate Version