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 0xbfe32cc3052c53fdb5383e098ba4b3bcc59e8afb6db3acdd4c41fa59ef08ce58. 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/b09e3461-ce93-45af-84bf-4697a2f6c52c.json and https://artists.proofprofile.net/proofs/artist/b09e3461-ce93-45af-84bf-4697a2f6c52c.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 0x64993502eec6044e66da23085334236cc2b674cd248b8978b7f315e33cb26310. 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/5rpZPZAkBo5lcrRYTZsh1Y.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/5rpZPZAkBo5lcrRYTZsh1Y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343f3694baae405f7d625aed8506f95a33b0ab3732152774d3f421287f2ba9cb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5OSneC2GZFoQszXeLJg0SH.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/5OSneC2GZFoQszXeLJg0SH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6afd7d42c0b4ae6864fa0834c4c731e51d8f984a4eb45bcaa4887859443046. 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/2f86WSiu9K6bXov0SDDSWL.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/2f86WSiu9K6bXov0SDDSWL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd4ce764d361818b78f0b7c745d57f8502a29c912307ab5681922d7f15aa402. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2rcLyrOTQolPpkGM2NwQ36.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/2rcLyrOTQolPpkGM2NwQ36.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd4ce764d361818b78f0b7c745d57f8502a29c912307ab5681922d7f15aa402. 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/5NSRLQcthHUbXsuMlLcvLD.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/5NSRLQcthHUbXsuMlLcvLD.