Defect Designer is a progressive death metal band from Oslo but originally coming from Akademgorodok, part of the Siberian city Novosibirsk. History In 2007 Defect Designer in Novosibirsk recorded th
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 0x2735821bdf641d5d40bfeb1ab9b2504bacfa237825898149d6e804870a200992. 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/bf056c48-cb2f-44e3-b3a4-8493d8379ed7.json and https://artists.proofprofile.net/proofs/artist/bf056c48-cb2f-44e3-b3a4-8493d8379ed7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).