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 0x3b81b85f4c62bbfb5e58aef795dbaef3233563936b06f93b88cd9bb18904eb83. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/200bb0c0-5589-4560-8788-0a393e568c36.json and https://artists.proofprofile.net/proofs/artist/200bb0c0-5589-4560-8788-0a393e568c36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x6795414eed32054b0a40751a757ceefecb19184ba8ec3cd17591d0cb1d4ddb3d","isrc":"US3DF2410319","name":"krushing news!","registered_at":"2026-06-21T16:02:34Z","spotify_id":"0JningXLlVXwmz1JRp5re0","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 0x6795414eed32054b0a40751a757ceefecb19184ba8ec3cd17591d0cb1d4ddb3d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0JningXLlVXwmz1JRp5re0.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/0JningXLlVXwmz1JRp5re0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9249d7ff5ec55290f213dfbdcf6d008fa4fb8606c9ca4ad3f27994a466796d98. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0RzKo2l40HkKGjqG7Hr0l0.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/0RzKo2l40HkKGjqG7Hr0l0.