Big Ass Truck (BAT) is an American rock band from Memphis, Tennessee which incorporates elements of hip-hop, rock, funk and psychedelia in their music.Big Ass Truck. NPR, July 18, 1999. The band inclu
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 0x6c332c9d0738a96af8e48fbbc252ec7a6704949263243079c5246eca9b0f6c05. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25c81700-d330-4dfb-a7f2-bbd9abbc2a25.json and https://artists.proofprofile.net/proofs/artist/25c81700-d330-4dfb-a7f2-bbd9abbc2a25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).