The Bass Brothers are an American record producer brother duo comprising Mark and Jeff Bass. They were responsible for helping Eminem with the creation of Infinite. Before that, they worked with Georg
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 0x64d89e9832cba3948fb240d635dd8b295980c178b591fd38b133969d442a8045. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a699ab1c-06ba-4075-9ecf-024ee49b233a.json and https://artists.proofprofile.net/proofs/artist/a699ab1c-06ba-4075-9ecf-024ee49b233a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).