The Cuckoos may refer to: The Cuckoos (1930 film), a U.S. musical comedy The Cuckoos (1949 film), a German comedy-drama
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 0x36f5d5a567bbfa775df9543d03a99fb8e1ee7cf97625259c59d76d527d32c417. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a87b416a-7e6b-4f68-aa93-641df9df7b65.json and https://artists.proofprofile.net/proofs/artist/a87b416a-7e6b-4f68-aa93-641df9df7b65.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
She's Wearing Lipstick (From Someone Else's Kiss)