SomBy is a Sámi rock band from the Finnish side of Sápmi that sings in Northern Sámi. The band was founded in Vuotso in 2004. At that point in time, the band consisted solely of girls. Its line-up exp
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa539d2e90781c981b8e24ae60eefb7e223a5019bb87ace17beb40725f5aefaa2. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34861738-f6c9-4bf2-97a3-5edd17907457.json and https://artists.proofprofile.net/proofs/artist/34861738-f6c9-4bf2-97a3-5edd17907457.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).