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 0x918bc0023daadcbfadb02d19136926d0f9bb154269a8a307f63bf9cb6462ceee. 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/7f0c8fd3-ebdf-4e66-a3ea-37c9d2e92c9c.json and https://artists.proofprofile.net/proofs/artist/7f0c8fd3-ebdf-4e66-a3ea-37c9d2e92c9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No One Likes Superman Anymore - EP Version
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 0x306db8184c1b9a89b7f5a0b984af8eddc494d1bf7c9cdfa46d1c19fd3851902b. 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/3qnWTRuAxudoqeP7ctQ72x.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/3qnWTRuAxudoqeP7ctQ72x.
{"copyright_id":"0x820330a18bba193a4575ac5db8ee0a8031a45f8d670ae15101efae57cda72ea4","isrc":"QZHN31967257","name":"While We're Still Young","registered_at":"2026-06-28T19:53:16Z","spotify_id":"2Aps2PKmhBywsw1y8Ng4re","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820330a18bba193a4575ac5db8ee0a8031a45f8d670ae15101efae57cda72ea4. 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/2Aps2PKmhBywsw1y8Ng4re.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/2Aps2PKmhBywsw1y8Ng4re.