The Milwaukee Symphony Orchestra (MSO) is an American symphony orchestra based in Milwaukee, Wisconsin. The orchestra performs primarily at the Bradley Symphony Center in Allen-Bradley Hall. The orche
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 0x2ca0024afbd412e3eea01931b204608431dbf4820634197d7b1a74d0c07b04f6. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35aeba51-a9e5-4ed2-8a9f-a9ccaf5d5d77.json and https://artists.proofprofile.net/proofs/artist/35aeba51-a9e5-4ed2-8a9f-a9ccaf5d5d77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).