Sonola is the debut studio album by Australian rock band The Black Sorrows. The album was released in June 1984 and consisted of cover versions of soul and R&B songs. Background In 1983, following th
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 0x6dbdc0e7adac139f3e72779e6be4b5324aeb4104b2a410e6e97f2484a4588db3. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d4f7441-f0c8-46b3-888c-425c095de407.json and https://artists.proofprofile.net/proofs/artist/7d4f7441-f0c8-46b3-888c-425c095de407.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).