Bo Grumpus is an American psychedelic rock band that originated in Boston, Massachusetts in 1967. They are best known for their debut album in 1968, Before the War, which was produced by Felix Pappal
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 0xe69e2d8510b8866002e88ae010a376b9224b50a680362000c2db1adfec4bec94. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c298b614-b798-438d-b3af-c4a2ea022652.json and https://artists.proofprofile.net/proofs/artist/c298b614-b798-438d-b3af-c4a2ea022652.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).