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 0x63ab0d63b451a7a4e2085233eea8b7a84f95ddc551e4f95738aae105afeb97b9. 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/6ffdb0a6-5830-4429-bc0f-4d9bae97a978.json and https://artists.proofprofile.net/proofs/artist/6ffdb0a6-5830-4429-bc0f-4d9bae97a978.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x54405bdc46869c6fea7c1250c5b52bbbeaa03e3ef2648cfc35b5d33788cca747","isrc":"GBARL1000651","name":"Ring a Ring A Roses","registered_at":"2026-06-28T19:24:31Z","spotify_id":"13OVhfsEwEWZNE9pm5OhiN","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 0x54405bdc46869c6fea7c1250c5b52bbbeaa03e3ef2648cfc35b5d33788cca747. 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/13OVhfsEwEWZNE9pm5OhiN.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/13OVhfsEwEWZNE9pm5OhiN.
The 59th Street Bridge Song (Feelin' Groovy)
1, 2, 3, 4, 5 Once I Caught A Fish Alive
Rockin' Around The Christmas Tree - Karaoke Mix