Syven is a Finnish band from Riihimäki, formed in 2007. The band released their début album Aikaintaite through Vendlus Records in 2011; the second album, Corpus Christi (Syven album), was released th
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 0xed3fa48711660786d58d283ae189834255220a7ab9a741a080304162488b8596. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e41af23-3667-4126-b6f7-e64e6f9befdf.json and https://artists.proofprofile.net/proofs/artist/9e41af23-3667-4126-b6f7-e64e6f9befdf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).