Struck Down is the second studio album by American hard rock/heavy metal band Yesterday and Today, released in 1978. It was one of the last rock albums to be released by London Records. A remastered v
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 0x186789adefbf4ee6735623f47a7d1312bfb52e8eb14e05fdca3c3983e4e153d8. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eeb6a1ee-6ec6-4a17-a245-7d4b78a7e8c8.json and https://artists.proofprofile.net/proofs/artist/eeb6a1ee-6ec6-4a17-a245-7d4b78a7e8c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).