The Blackstones are a United Kingdom-based reggae vocal trio formed in 1974, in the tradition of the Jamaican harmony-trio.Barrow, Steve & Dalton, Peter (2004) The Rough Guide to Reggae, 3rd edn., Rou
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 0xd315c4edddb5a9f399b31e4be6fc10460bddb38ee0b6cfa329ac4c5e53b7df47. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba005c8b-2f34-45e8-b194-2c281ca5cf7e.json and https://artists.proofprofile.net/proofs/artist/ba005c8b-2f34-45e8-b194-2c281ca5cf7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Blackstones Salute Slim Smith & The Uniques
Pick Yourself Up / You'll Never Get Away
Black Label Reggae-The Blackstones-Vol. 1
Best of the Essential Years: The Blackstones
Fresh - Stingray Studios Presents The Blackstones