Mark Guiliana (born September 2, 1980) is an American drummer, composer and leader of the band Beat Music. He has played with Avishai Cohen, Brad Mehldau, David Bowie, Meshell Ndegeocello, Gretchen Pa
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 0xc476da572145e5feb498f89657aaf01e36ea5d26f8b4890af9f73daef84bfc1b. 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/b90bb845-c80f-46b9-8719-cd01930a234b.json and https://artists.proofprofile.net/proofs/artist/b90bb845-c80f-46b9-8719-cd01930a234b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).