Bang! Bang! Eche! were an alternative rock band from Christchurch, New Zealand, active between 2007 and 2013. History The band started playing shows in early 2007. Towards the end of 2007, the band w
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 0x6afce36da71fbb4a643aaa82e7204b98f35a94f8a68a09eedee6df5f1ff1cd39. 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/3225ca2d-a318-4ab7-a1a6-52f0474f5113.json and https://artists.proofprofile.net/proofs/artist/3225ca2d-a318-4ab7-a1a6-52f0474f5113.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).