EMM may refer to: People EMM (musical artist), Emma "EMM" Norris, American musical artist Colin Emm (1932–2012), birth name of Richard Dawson, British-American comedian and actor Emm Gryner (bo
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 0x4d85896c2f89047f8968fd20e3e625b3a8d185a2d276dca564448b4826b12f7d. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb6e3009-ff03-4046-9b5b-07f4b92d24e7.json and https://artists.proofprofile.net/proofs/artist/cb6e3009-ff03-4046-9b5b-07f4b92d24e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).