Zoltron is an American rock music poster designer, street artist, and creative director. His posters are included in the collections of Victoria Albert Museum, London, de Young fine arts museum, San F
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce4c92526e44e02486b06021f7488933a959a3c4ddac6a2aa9c6fb154215b79. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d0a8e1c-0e20-42a5-82dd-118547a6f6cf.json and https://artists.proofprofile.net/proofs/artist/5d0a8e1c-0e20-42a5-82dd-118547a6f6cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).