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 0x105fe969535a1e12a3dad2478c8fa799cc4a6074ef5a48e9fb5dc7b9ec27560d. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0482846c-f5fd-4a91-904f-6c5fa10e8c57.json and https://artists.proofprofile.net/proofs/artist/0482846c-f5fd-4a91-904f-6c5fa10e8c57.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Acoustic Guitar Backing Jam Tracks (Vol.1)
Leslie Pop Rock Guitar Backing Track Jams
1980's Style Guitar Backing Tracks | All 12 Keys
Ozzy METAL Style Guitar Backing Tracks | All 12 Keys | Royalty Free
LoFi Hip-Hop Chill Guitar Backing Tracks | All 12 Keys | Royalty Free
Hard Blues Rock Guitar Backing Tracks | All 12 Keys | Royalty Free
Funk Guitar Backing Tracks | All 12 Keys | Royalty Free
Drone Backing Tracks | Practice All Scales, Modes & Arpeggios
Chug Life Metal Guitar Backing Track in B Minor