Musa may refer to: Places Mūša, a river in Lithuania and Latvia Musa, Azerbaijan, a village in Yardymli Rayon Musa, Iran, a village in Ilam province, Iran Musa, Chaharmahal and Bakhtiari, Iran Musa K
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 0x24a3aa19bd6f5c23cdefd32e80f711a08172ae7cdef27e7a41fe5d7fa095c787. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c673e1a7-f608-4c14-b443-8a070a523b3c.json and https://artists.proofprofile.net/proofs/artist/c673e1a7-f608-4c14-b443-8a070a523b3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).