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 0xce7fbe96fb4ee5c9a8f9906f3385859b002c48e4c4e10c3360a343fe2ecccc7c. 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/e6fefabc-b933-4696-8011-02ece3f44e62.json and https://artists.proofprofile.net/proofs/artist/e6fefabc-b933-4696-8011-02ece3f44e62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amuleto (Acoustic) [feat. Edward Ramirez & Hugo Candelario]
{"copyright_id":"0x30ab438e0dd86314cdd614b4febfd42fa3a7bd6f04f256769ef0414dd9a179ad","isrc":"UKXN22048219","name":"Molecular - Versión Contracorriente","registered_at":"2026-06-27T20:46:40Z","spotify_id":"7zZoqX02CaWFKDOSV1HM3Z","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 0x30ab438e0dd86314cdd614b4febfd42fa3a7bd6f04f256769ef0414dd9a179ad. 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/7zZoqX02CaWFKDOSV1HM3Z.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/7zZoqX02CaWFKDOSV1HM3Z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a16800d99e034122f55d78aed6a8d72e41581ac9695f778ab5133a9f907e02b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Zh91nwJJNTyE6WzXfuZrO.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/2Zh91nwJJNTyE6WzXfuZrO.