Redshark is a Spanish heavy metal band, founded in 2012 which originated in Barcelona. The band is often referred to as being in the NWOTHM movement. Musical style Redshark's musical style has been d
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 0x0df1dae8c9f486a1d7728df8e57f74c783d8f5a1f26417d1defb851e1b24f68b. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/873be89b-b81b-435a-8f26-01fde3314186.json and https://artists.proofprofile.net/proofs/artist/873be89b-b81b-435a-8f26-01fde3314186.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).