Sleepify is an album by the American funk band Vulfpeck, released March 2014. The release consists solely of ten roughly 30-second-long tracks of silence. The album was made available on the music str
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 0x5da8a2a32709fdf43f2a9dc2221d8f8d7906224d21b1c1fa01a277d4fd2f3173. 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/5f7a84ed-c899-46bc-8638-454fd3eba96e.json and https://artists.proofprofile.net/proofs/artist/5f7a84ed-c899-46bc-8638-454fd3eba96e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).