Eric Cameron Stoltz (born September 30, 1961) is an American actor, director and producer. He played Rocky Dennis in the biographical drama film Mask (1985), which earned him the nomination for the Go
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 0x6f089ac34d16f0b099d70d8c3856b9a22c6bdf499eb2064ba1cfceeb9a65cd2a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9a7d600-dfce-4383-97a6-7a39de715d32.json and https://artists.proofprofile.net/proofs/artist/d9a7d600-dfce-4383-97a6-7a39de715d32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).