1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xd0f08e785b5054b77ef30b091534839b7182fc09198f442194769f510bcdcc6a. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3236cba3-3b2a-4987-a074-cdeae5112132.json and https://artists.proofprofile.net/proofs/artist/3236cba3-3b2a-4987-a074-cdeae5112132.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Blue, Brown, Pink and White Noise (Loopable and no fade)
White Noise, Brown Noise, Appliances, Water and other Audio