De la Rosa is a Spanish surname, which means "of the rose". The name De la Rosa (or variants of the name) may refer to: People with the name De la Rosa Dane De La Rosa (born 1983), American basebal
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 0xe6d745089e286e1d689170fa0df017e2a753cf19fe89530110a47a32e8fa7842. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83660d7a-795c-484b-adba-092cfb8a64d4.json and https://artists.proofprofile.net/proofs/artist/83660d7a-795c-484b-adba-092cfb8a64d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).