WAXX (104.5 FM) is a radio station in the Eau Claire area of Wisconsin, with its studio/offices located in Altoona, Wisconsin. Its transmitter is located in Fairchild, Wisconsin, sharing the tower wi
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 0xca625b11c1cca3c0254ef5dbf4200fef14ac511ed9805853ddc0e5d055a5fce0. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f05ef9e6-a252-4b1d-bb05-07329bbc81b7.json and https://artists.proofprofile.net/proofs/artist/f05ef9e6-a252-4b1d-bb05-07329bbc81b7.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.