Ay, AY or variants, may refer to: People Ay (pharaoh), a pharaoh of the 18th Egyptian dynasty Merneferre Ay, a pharaoh of the 13th Egyptian dynasty A.Y. (musician) (born 1981), a Tanzanian "bongo
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 0xa528d98513c566e7e43ebc5b47d6521de930694c9a7c4e7f541576a74252fa8b. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d8618db-679b-4adc-b2d4-b12016095bb4.json and https://artists.proofprofile.net/proofs/artist/8d8618db-679b-4adc-b2d4-b12016095bb4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).