Stephen Carpenter (born August 3, 1970) is an American musician, best known as the co-founder and lead guitarist of the alternative metal band Deftones. He is also a founding member of the instrumenta
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 0xb9912ee6e4c9a63346396485e891c6e2f62ebe962c0d645bf8b1e981a1f03eac. 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/59e71b4a-0ba3-48d2-8dbe-c7e310f66243.json and https://artists.proofprofile.net/proofs/artist/59e71b4a-0ba3-48d2-8dbe-c7e310f66243.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).