Ximo Tebar (March 30, 1963 in Valencia) is a Spanish jazz musician (guitar, composition). Life and works Tebar started taking guitar lessons at the age of seven. His first music genre was flamenco.
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 0x450052b9f5bc6785100a6d8cae14dd87122abfed2651d75f82a1d503e0cdf780. 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/63be2342-8c2b-4996-8328-0700fe95595d.json and https://artists.proofprofile.net/proofs/artist/63be2342-8c2b-4996-8328-0700fe95595d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
So What! (with Lonnie Smith & Billy Brooks)