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 0xbd85fd1caf8ee4392d2b818179c13f56d2623359188feac7aea078606b49d68a. 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/93529133-15f2-4e99-8b03-e10419dacd0c.json and https://artists.proofprofile.net/proofs/artist/93529133-15f2-4e99-8b03-e10419dacd0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Фантастична жінка (Bakun Remix) [Extended Version]
{"copyright_id":"0x35bdf2ac7b64f6ef3cbc9e1ecacbd5114eb07969cd934ebbc2995d80ae6cdc88","isrc":"FR59R2298652","name":"Разом до перемоги","registered_at":"2026-06-08T05:05:04Z","spotify_id":"0wx6AOjvLHkRaNJJPYSAHD","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 0x35bdf2ac7b64f6ef3cbc9e1ecacbd5114eb07969cd934ebbc2995d80ae6cdc88. 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/0wx6AOjvLHkRaNJJPYSAHD.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/0wx6AOjvLHkRaNJJPYSAHD.