Happy Birthday may refer to: "Happy Birthday", an expression of good will offered on a person's birthday Film and theatre Happy Birthday (play), a 1946 Broadway play by Anita Loos Happy Birthday
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 0xf34c60e36e2f67994628fc06dcc5d63ad848fdd55b56f20332fd991f4adf155a. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe612a75-a6ea-4e50-9f24-3a8c92a80778.json and https://artists.proofprofile.net/proofs/artist/fe612a75-a6ea-4e50-9f24-3a8c92a80778.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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