Jack Martin Blades (born April 24, 1954) is an American rock musician.Billboard.com – Biography – Jack Blades He has worked in the bands Rubicon, Night Ranger (as bassist and one of the lead vocalists
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 0x294843a931ac170723ff46d1ef7eda8e759823efb354c995c8127525fe1aff17. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3aa9a61c-1c45-4a9f-9cd3-2fbfe22f4bf2.json and https://artists.proofprofile.net/proofs/artist/3aa9a61c-1c45-4a9f-9cd3-2fbfe22f4bf2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).