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 0x3e93c74ab6460346c85bf64dc721680271dd7cab6e2e8d1e3c8a75ea3862f179. 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/49146758-1123-4bc6-a9c4-76bb04305576.json and https://artists.proofprofile.net/proofs/artist/49146758-1123-4bc6-a9c4-76bb04305576.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
En Vivo Desde Acosmo Sound - Malmö, Suecia
{"copyright_id":"0xd8d000d7c045b56d3a8fe9d77ff0f87e04ea89228c215bae3c68d9105128c52f","isrc":"CLKT21801356","name":"Cuál es el secreto - Mitú Remix","registered_at":"2026-06-24T15:14:46Z","spotify_id":"5wg2b7KNKZu4owB6PuHe7m","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 0xd8d000d7c045b56d3a8fe9d77ff0f87e04ea89228c215bae3c68d9105128c52f. 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/5wg2b7KNKZu4owB6PuHe7m.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/5wg2b7KNKZu4owB6PuHe7m.