Skinny Boy is the debut solo album by Chicago's keyboard player Robert Lamm released in 1974 on Columbia Records. It has the distinction of being the first solo effort by any Chicago band member. The
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736ae0f91428f7d010fe814b052249062dca3ea918a5b155740ff49021c47251. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb36d68e-c871-4b18-a404-26fdc993efa0.json and https://artists.proofprofile.net/proofs/artist/fb36d68e-c871-4b18-a404-26fdc993efa0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).