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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4603b2fdeeb4ac709f8c58a06bbdacf447c38157fa798bda3825e9fc4704c8. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e633331-4c0f-4f10-974f-0439d938de68.json and https://artists.proofprofile.net/proofs/artist/5e633331-4c0f-4f10-974f-0439d938de68.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Yerba Buena - Sebastian Ledher Club Remix
There Is Soul in My House Selected by Purple Music All-Stars, Vol. 10