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 0x651a5ffe0a258b7646ce2e539082c575b2c49a296cf57a395e8ce5d26ceed818. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6cd31f2-8b94-4fe8-9be9-64f531db436d.json and https://artists.proofprofile.net/proofs/artist/d6cd31f2-8b94-4fe8-9be9-64f531db436d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Sound Theology: selections from the double album
The Best Of Jonathan Rundman: 20 Songs From The 20th Century
Protestant Rock Ethic: Selections From The Double album
Sound Theology: 20th Anniversary Highlights
Lost Songs of the Suomi Synod, Vol. 1: Assembly
Lost Songs of the Suomi Synod, Vol. 2: Love
Recital: 25th Anniversary Deluxe Edition
Wherever: 30th Anniversary Deluxe Edition