Blas is mainly a Spanish given name and surname, related to Blaise. It may refer to Places Piz Blas, mountain in Switzerland San Blas (disambiguation) People Ricardo Blas Jr. (born 1986) Judo athlet
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 0x15b82701cd0eb3ad7cdefff9f7e5f9c0c4fdbfa055a11a8ce985188e6b9b2038. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7cd5419-49d2-4ca5-92bd-a3b901c6f61d.json and https://artists.proofprofile.net/proofs/artist/f7cd5419-49d2-4ca5-92bd-a3b901c6f61d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).