Second album of Polish hardcore punk rock band Eye for an Eye Track listing "Otwórz drzwi" – 1:13 "Warriors" – 2:08 "Krzyczymy" – 1:39 "Klatka" – 2:06 "Konflikt" – 1:53 "W tłumie" – 1:53 "Śmiech"
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 0x88227361f09ad160f5d50ce1063820f84adb77cf16fa4bda1be5490b790e0f86. 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/145864d2-8d30-4ea8-aea1-e17b2ad5ef46.json and https://artists.proofprofile.net/proofs/artist/145864d2-8d30-4ea8-aea1-e17b2ad5ef46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).