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 0xf22885dc2dd3ac8ee37a878bbb9e27efae9c3e4999c455da9039c96376096e68. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8527f4bd-edad-4bf3-a54e-cdbc83208135.json and https://artists.proofprofile.net/proofs/artist/8527f4bd-edad-4bf3-a54e-cdbc83208135.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x938f610b4a1fc641f3e477e54af538f361028aa51cc06dd3384a2e9c7db5418e","isrc":"QZTAS2437842","name":"Como es Adentro es Afuera","registered_at":"2026-06-24T15:29:45Z","spotify_id":"6EgTmb3fTifcfzGcHOKWy0","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 0x938f610b4a1fc641f3e477e54af538f361028aa51cc06dd3384a2e9c7db5418e. 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/6EgTmb3fTifcfzGcHOKWy0.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/6EgTmb3fTifcfzGcHOKWy0.
{"copyright_id":"0xc84115d44cd989a4faf39bfed85bbb9b9d421dfd38bb66f3afd0990011fce126","isrc":"QZNJX2464677","name":"Para Hacerlo Hip Hop","registered_at":"2026-06-06T16:35:30Z","spotify_id":"3FqlLjWWMcsy2CFWztjcdF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84115d44cd989a4faf39bfed85bbb9b9d421dfd38bb66f3afd0990011fce126. 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/3FqlLjWWMcsy2CFWztjcdF.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/3FqlLjWWMcsy2CFWztjcdF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa60e95c48faa586174dda17bfda40428c9bf134d39c387453bc8b343dad208. 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/0z6CcMmDK1TZwAiDkG726i.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/0z6CcMmDK1TZwAiDkG726i.