Devin Graham (born July 29, 1983) is an American videographer who produces adventure and extreme sport videos on YouTube under the name devinsupertramp.Sarah Petersen. "YouTube celebrity Devin Graham
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 0x6efc5422d21e7b8dcaa43ca200682652e021c8ac8d28e0bfced0e702c8c59c1f. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb3b3b9f-7dc3-47c1-95fa-2b03be1227c3.json and https://artists.proofprofile.net/proofs/artist/bb3b3b9f-7dc3-47c1-95fa-2b03be1227c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).