Throne of Chaos (TOC) were a heavy metal band from Espoo, Finland, active from 1996 to 2005. Their early sound, as recorded on their debut album Menace and Prayer, has been described as melodic dea
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976c4c1c8787c795accf2c9d5aa765344d1d5c11f879fc35e91d580a7726c6d4. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/afe780bd-1f36-4a6e-b64e-784b216ff751.json and https://artists.proofprofile.net/proofs/artist/afe780bd-1f36-4a6e-b64e-784b216ff751.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).