Rosemond is a surname. Notable people with the surname include: Anna Rosemond (1886–1966), American actress Clinton Rosemond (1882–1966), American actor John Rosemond (born 1947), American psychologi
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 0x3b287f789a5f219565f4d3d329af819f382ea78389279d4cd70b3464ef1ce86d. 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/61cb632b-c596-4b9d-8b9d-400ccc2b78aa.json and https://artists.proofprofile.net/proofs/artist/61cb632b-c596-4b9d-8b9d-400ccc2b78aa.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.