Udio is a generative artificial intelligence model that produces music based on simple text prompts. It can generate vocals and instrumentation. Its free beta version was released publicly on April 10
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 0x14d3450b48020d6a739247e492c8e52c23b9c17d99ec193fb7ac4c8e933d89b7. Chain 2 (Bitcoin): anchored in block 954139 (2026-06-17T21:12:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ff259fe-0662-4185-83fa-f425e4e79ebd.json and https://artists.proofprofile.net/proofs/artist/7ff259fe-0662-4185-83fa-f425e4e79ebd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).