Bryce Papenbrook (born February 24, 1986), sometimes credited as Bryce Rothstein, is an American voice actor. He is a prolific performer, with hundreds of credits across film, television, and video ga
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 0xc08aac88bf4b030191c67e4b73564ca20cc4a9da6fe515d781cfd7f93af719ec. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7da774c-dce4-43a8-aa66-eeeac4d264d7.json and https://artists.proofprofile.net/proofs/artist/b7da774c-dce4-43a8-aa66-eeeac4d264d7.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.