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 0x6026766bd39965c153e24468f0fc8459e44126f2cf8750e270754645f7d0279c. 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/346deae2-50c2-4cf3-a8f8-38deb0acc017.json and https://artists.proofprofile.net/proofs/artist/346deae2-50c2-4cf3-a8f8-38deb0acc017.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 0xd347fb8d9acf811b8ddfe073a7b1782d00dc6bc4e49e20406750d3b5578e1440. 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/6TUDPesFcT8JW6AWAoHxc6.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/6TUDPesFcT8JW6AWAoHxc6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29bcaaf1b08315eeca215f7d630be1502fbf0a3955268636ca3014c81eeba87. 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/3r75uBnla2LYknz8N2gQzf.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/3r75uBnla2LYknz8N2gQzf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218811b92237b00a636125029d41f2cd84664ed87862eb44274dfcf5f3b71f8f. 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/6g2beHXeey86CIgNUJiAv3.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/6g2beHXeey86CIgNUJiAv3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfc8879e8d1470d3194af440fe860e0c36bc370f27e77400b7aaae1316be938. 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/1AGR9rv6S6y3tFrz9GswY6.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/1AGR9rv6S6y3tFrz9GswY6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1197d8035ecda7121473234803d1b0c5b9d6ee61b6486ee923e35780b45fed. 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/6NHxEheusz4zUtG2Ze1MYb.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/6NHxEheusz4zUtG2Ze1MYb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde385c7aa4ae849cd12ca19fd7939886270e1d0069b71cb9930add6690861c5. 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/05iw6jY81zhqE1FCsXPfaM.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/05iw6jY81zhqE1FCsXPfaM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0243f1ba2dd3752017a9524a9565dbb2320a49fe9bd75b1c293a4b4d012af7. 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/6dz9ugA4sZ3qxdV2dlCq6l.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/6dz9ugA4sZ3qxdV2dlCq6l.