Radu Marian may refer to: Radu Marian (politician) (born 1990), Moldovan politician Radu Marian (sopranist) (born 1977), Moldovan sopranist Radu Marian Petrescu (born 1982), Romanian football refe
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 0x7aae6872a9022d584c2a45e5110b0e3b81f19584fb5e5246469423d165bf48dd. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abf15cc8-53e3-4b92-ab22-a5adfe6ebb49.json and https://artists.proofprofile.net/proofs/artist/abf15cc8-53e3-4b92-ab22-a5adfe6ebb49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).