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 0xda837aa8a6bf4f98870b1502472f09a3bafcb315bdbb7e574213aa3ad2eb7b66. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d12f2cb-4217-4b3d-a7ea-81868356a375.json and https://artists.proofprofile.net/proofs/artist/0d12f2cb-4217-4b3d-a7ea-81868356a375.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Camping at Night in the Forest with Cricket Sounds
Swamp Sounds, Nighttime Ambience, Nature Sleep Sounds
Crickets and Frogs in the Swamp at Night