Llandel Veguilla Malavé (born January 14, 1977), best known by his stage name Yandel, is a Puerto Rican singer who is a member of the reggaeton duo Wisin & Yandel. He released his first solo album, Qu
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 0x3eaaf613138945c4a0308656f5715b78658e28019cd82f952f1c5b4133e112ae. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0941549-bcdc-4e4a-b538-b8e342228054.json and https://artists.proofprofile.net/proofs/artist/d0941549-bcdc-4e4a-b538-b8e342228054.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).