YA, yA, or Ya may refer to: Language Ya (arrow), the Japanese word for an arrow Ya (Cyrillic) (Я), a Cyrillic alphabet letter Ya (Javanese) (ꦪ), a letter in the Javanese script Ya (kana), the Rom
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 0xee1d21f904ef4456b7170da42eb867825826622b6486d076ed803d6de7ee5f7b. Chain 2 (Bitcoin): anchored in block 953958 (2026-06-16T14:52:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27308a21-ac86-46c7-a437-6e8a10f42b5f.json and https://artists.proofprofile.net/proofs/artist/27308a21-ac86-46c7-a437-6e8a10f42b5f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
One Mic Freestyle (feat. GRM Daily & No Remorse)