Sam Lee may refer to: Sam Lee (actor) (born 1975), Hong Kong actor Sam Lee (tennis) (born 1914 or 1915), American tennis player Sam Lee (singer) (born 1973), Taiwanese singer and songwriter Sam Lee (
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 0x2284a56df73ae1a82be648368b5a0880c90a02e5227b0384ebc0be4b83e9b6af. 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/766d76de-4de8-44d8-bc62-ffb8cd6bbe38.json and https://artists.proofprofile.net/proofs/artist/766d76de-4de8-44d8-bc62-ffb8cd6bbe38.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).