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 0xb1750615738325d6188bf7e5ce2eed0aba28715e71111632ff69c9368dfdab4d. 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/3a805207-26b9-4ef2-b3f4-ce7f3f33473b.json and https://artists.proofprofile.net/proofs/artist/3a805207-26b9-4ef2-b3f4-ce7f3f33473b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xef590fc45a02f1be8aa1f622f34b8bc6935c5f346ad913037b0dad76994c1110. 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/4noSzze1g7g9wGMzumJDT8.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/4noSzze1g7g9wGMzumJDT8.
{"copyright_id":"0x0fa52ec61f4ceb09e0588a919363788629f6bf516b24a5f99b0ef18d0e9de5cc","isrc":"USHEL0304112","name":"New Breed","registered_at":"2026-06-25T09:55:29Z","spotify_id":"5JUNNfIGYazUwuuJwLw21D","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa52ec61f4ceb09e0588a919363788629f6bf516b24a5f99b0ef18d0e9de5cc. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5JUNNfIGYazUwuuJwLw21D.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/5JUNNfIGYazUwuuJwLw21D.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa52ec61f4ceb09e0588a919363788629f6bf516b24a5f99b0ef18d0e9de5cc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4t28zijChzOJ7htJf7GVdF.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/4t28zijChzOJ7htJf7GVdF.
{"copyright_id":"0x31bf2720d904a982bd38f9880206b0f28cad75a2e57f061468aa66d15bfecbbf","isrc":"USHEL0304207","name":"Can't Stand It","registered_at":"2026-06-25T09:54:57Z","spotify_id":"0U8V8HVNMmCjfOeVKMGokh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bf2720d904a982bd38f9880206b0f28cad75a2e57f061468aa66d15bfecbbf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0U8V8HVNMmCjfOeVKMGokh.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/0U8V8HVNMmCjfOeVKMGokh.