"Young Boy" is a song by English musician Paul McCartney, included as the fifth track on his 10th solo studio album, Flaming Pie (1997). McCartney reportedly started working on the song in August 1994
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 0xbf87e3b206963f12b5b22d9c97005713227f8a970e53fc45bfe68a72dce834d9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d0d52ad-d84b-42db-9864-5b931c9435a1.json and https://artists.proofprofile.net/proofs/artist/5d0d52ad-d84b-42db-9864-5b931c9435a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).