"Lil Demon" is a song by American rapper Future from his seventeenth mixtape Mixtape Pluto (2024). It was produced by Southside and Smatt Sertified. Background On the night of September 2, 2024, Futu
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 0x3e1f52445b1129e994e4e5301eab172d04dbad0763039ed661fe0177434e16a6. Chain 2 (Bitcoin): anchored in block 953941 (2026-06-16T11:51:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/211babed-2cc5-4d03-8d93-bc98bf386e2e.json and https://artists.proofprofile.net/proofs/artist/211babed-2cc5-4d03-8d93-bc98bf386e2e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).