Marzio Scholten (born in Granollers, Spain, 17 June 1982) is a Dutch jazz guitarist and composer. Biography He is considered as one of the leading modern jazz guitarists and composers of The Netherla
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 0x773e6f849602ee3c7dd52bb7a0b7bd52791e2b1c8f7920696560b26676083a02. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da63572a-983a-4f27-aa6c-4c5b766996c2.json and https://artists.proofprofile.net/proofs/artist/da63572a-983a-4f27-aa6c-4c5b766996c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).