Saille is a Belgian black metal band formed in 2009. The band uses classical instruments as well as traditional black metal instruments. Saille has released five studio albums till to date. History
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 0x63989dd2140e5503e6b97915f3b18bac4b8015d9eadfebcf93eca0302ebc1e7f. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cad020ad-4990-409c-9634-5a2a5787db25.json and https://artists.proofprofile.net/proofs/artist/cad020ad-4990-409c-9634-5a2a5787db25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).