Toiling Midgets are a rock band from San Francisco, California formed in 1979 by members of punk bands Sleepers and Negative Trend, there is an English rock band Sleeper. They have been active on-and-
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 0xd71afabbe46dbc59f6b41345f56770891aa02cfd13c4980642607d91a4907db0. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/549bbd69-81da-46fa-a7d4-a587a3d2f17e.json and https://artists.proofprofile.net/proofs/artist/549bbd69-81da-46fa-a7d4-a587a3d2f17e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).