Blank Realm is a musical group from Brisbane, Queensland, Australia active since 2005. The group is composed of sibling members Daniel, Luke and Sarah Spencer and guitarist Luke Walsh. They were desc
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 0xa49eac5374ab35e5fe1c39244fb04ab317a234b3dc9415077ad396a445af4707. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6d32c3b-8c89-4a02-9e11-2b97763a692f.json and https://artists.proofprofile.net/proofs/artist/b6d32c3b-8c89-4a02-9e11-2b97763a692f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).