right|thumb|200px|Jules Demersseman Jules Auguste Demersseman (9 January 1833 – 1 December 1866) was a French flautist and composer. Biography Demersseman was born in Hondschoote, Département Nor
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 0x6f204e8adeff399070c42390d979c95ff806ae654e817aa1339882fcf5bc6a50. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e11106ac-3142-4de4-9b3f-0b312d07f8b0.json and https://artists.proofprofile.net/proofs/artist/e11106ac-3142-4de4-9b3f-0b312d07f8b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Comfortably Stable Classical Music While Reading Books 3