Michael De Jong (January 22, 1945 – March 10, 2018) was a Dutch–American blues guitarist and singer songwriter. In the early days when he played with the Michael De Jong Band his music was influenced
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 0x533b3659bb3a301017c29ba5522f939985b68759409966c7b33ddc3bfe817a47. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b50c6bde-95f3-41ab-be78-55ffb35fa01e.json and https://artists.proofprofile.net/proofs/artist/b50c6bde-95f3-41ab-be78-55ffb35fa01e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).