Little Big is a Russian rave band founded in Saint Petersburg in 2013 and currently based in Los Angeles, California, following the Russian invasion of Ukraine.Official page of the group Little Big on
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 0x68d81535776ce5e1820d2974169eb0f49f7672b4cfbed3f131aef7bcdd16bc71. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05314061-ec01-42a0-aa7c-e8ab9532bf03.json and https://artists.proofprofile.net/proofs/artist/05314061-ec01-42a0-aa7c-e8ab9532bf03.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.