David Alexander Sprecher (born July 2, 1981), known professionally as Yeti Beats, is an American record producer and songwriter. He is best known for his work with American singer and rapper Doja Cat,
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 0x9b563503ee4856037eb7ca0b3ff7a55925a367850c7027d3a4f0598c73c099fa. 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/d57edde3-3160-48a7-8571-381b89e13079.json and https://artists.proofprofile.net/proofs/artist/d57edde3-3160-48a7-8571-381b89e13079.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.