YB or Yb may refer to: Arts and entertainment YB (band), a South Korean rock band (short for Yoon Do Hyun Band) YoungBoy Never Broke Again (born 1999), American rapper Young Buck (born 1981), rapp
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 0xe3b82686412fa0f4473907fd8d5b5149842011a9919c05e707d2c39111ed48c0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/703c8040-fcf4-4aa4-8c54-3686b66362b1.json and https://artists.proofprofile.net/proofs/artist/703c8040-fcf4-4aa4-8c54-3686b66362b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).