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 0x2596a5adc6e783e1a2d044448154638c902a44f8565ca81af6ac0b73dc2c6a23. 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/23112971-d735-4eca-a685-9316cb49a1a0.json and https://artists.proofprofile.net/proofs/artist/23112971-d735-4eca-a685-9316cb49a1a0.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 0x6483b26a15f015e206d155ffee1f295a78eae7e776ce91ff839338f0f4b4c02f. 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/4BHKK9i3VgEC9jjFZdKoMd.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/4BHKK9i3VgEC9jjFZdKoMd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc759e0f8c9f5ba064519c6e4b49c2b400ac1a588689026f519db19ea472876. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7BLjZyIpvo8ViFcTy4Dmsr.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/7BLjZyIpvo8ViFcTy4Dmsr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc759e0f8c9f5ba064519c6e4b49c2b400ac1a588689026f519db19ea472876. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2M10E6XZNWnf30JuuqIzum.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/2M10E6XZNWnf30JuuqIzum.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc759e0f8c9f5ba064519c6e4b49c2b400ac1a588689026f519db19ea472876. 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/1MJQ3bC4fGp1hTXsHVGRzP.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/1MJQ3bC4fGp1hTXsHVGRzP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e44fb133a54a20a34ded52b6c6a9aa156c2279279c2fa6824081aa7c266c8ae. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Nbemea3vFrJXqWFUm6hCh.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/0Nbemea3vFrJXqWFUm6hCh.