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 0xbf6ab3df658e530342f799eae3dadefb63db97c754a3df6c69109c265cfeffe0. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ae16577-ec24-4b6f-b586-8556a137aab6.json and https://artists.proofprofile.net/proofs/artist/0ae16577-ec24-4b6f-b586-8556a137aab6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xbe8e42af550afd7b100c7eb9f5dd35a393d8bd30a92ae22cadff150e2b206ec4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN92004465 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793fc8609689a23005d098e1d5dcacb9f6fb05bf047b53e41945b7b7885ce9fd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN92089347 — a six-check JSON result.
Spacey Fusion Bass Backing Track in C# Minor
Spacey Fusion Drumless Backing Track 140 BPM
Smooth Jazz Backing Track in F# Major/Minor
Smooth Jazz Bass Backing Track in F# Major/Minor
Smooth Jazz Drumless Backing Track 80 BPM
Mellow Groove Bass Backing Track in a Major
Mellow Groove Drumless Backing Track 90 BPM
Funk Fusion Bass Backing Track in D Minor
Smooth Funk Bass Backing Track in F Minor
Smooth Funk Drumless Backing Track 100 BPM
Sad Emotional Bass Backing Track in G# Minor
Sad Emotional Drumless Backing Track 81 BPM
Funk Fusion Drumless Backing Track 105 BPM
Funky Groove Bass Backing Track in B Minor
Funky Groove Drumless Backing Track 125 BPM
Epic Cinematic Bass Backing Track in G Minor
Mellow Drumless Backing Track (6/8) 80 BPM
Atmospheric Groove Backing Track in C Minor
Atmospheric Groove Bass Backing Track in C Minor
Atmospheric Groove Drumless Backing Track 100 BPM
Groovy Mellow Bass Backing Track in C# Minor
Groovy Mellow Drumless Backing Track 120 BPM
Cinematic Rock Bass Backing Track in D Minor
Cinematic Rock Drumless Backing Track 140 BPM
Reggae Dub Bass Backing Track in B Minor
Reggae Dub Drumless Backing track 90 BPM
Epic Cinematic Backing Track in G Minor #002
Epic Cinematic Bass Backing Track in G Minor #002
Epic Cinematic Drumless Backing Track 162 BPM
Funk Groove Guitar Backing Track in C# Minor
Funk Groove Bass Backing Track in C# Minor
Funk Groove Drumless Backing Track 112 BPM
Uplifting Mellow Guitar Backing Track in D Minor
Uplifting Mellow Bass Backing Track in D Minor
Uplifting Mellow Drumless Backing Track 130 BPM
Sad Rock Guitar Backing Track in F# Minor
R&B Groove Guitar Backing Track in B Minor
R&B Groove Bass Backing Track in B Minor
R&B Groove Drumless Backing Track 95 BPM
Groovy Funk Guitar Backing Track in D Minor
Groovy Funk Bass Backing Track in D Minor
Groovy Funk Drumless Backing Track 98 BPM
Mellow Soulful Guitar Backing Track in D# Minor
Mellow Soulful Bass Backing Track in D# Minor
Mellow Soulful Drumless Backing Track 80 BPM
Fusion Groove Guitar Backing Track in C Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92928a68882a5b3741235432a12dd4b0dbec9f6fe19d33c7c1b91cf27dbc1ee1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2157406 — a six-check JSON result.
Fusion Groove Bass Backing Track in C Minor
Fusion Groove Drumless Backing Track 120 BPM
Mellow Rock Guitar Backing Track in D Major
Mellow Rock Bass Backing Track in D Major
Mellow Rock Drumless Backing Track 90 BPM
Groovy Atmospheric Guitar Backing Track in C Minor
Groovy Atmospheric Bass Backing Track in C Minor
Groovy Atmospheric Drumless Backing Track 120 BPM
Power Funk Guitar Backing Track in D Minor
Power Funk Bass Backing Track in D Minor
Power Funk Drumless Backing Track 120 BPM
Uplifting Mellow Guitar Backing Track in Bb Minor
Uplifting Mellow Bass Backing Track in Bb Minor
Uplifting Mellow Drumless Backing Track 120 BPM
Funk Fusion Guitar Backing Track in G Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b8aa81d54e76734fbf831fdbe49f1a6ddfe677d49a9fb4c3cdc15905f7a5e8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYZ2211371 — a six-check JSON result.
Funk Fusion Bass Backing Track in G Minor
Funk Fusion Drumless Backing Track 100 BPM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cccf03c85fbb79e429b7d55392ee2d353f6f8436c24c998075cddc62e1ab61e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ22212485 — a six-check JSON result.
Spacey Groove Guitar Backing Track in G# Minor
Spacey Groove Bass Backing Track in G# Minor
Spacey Groove Drumless Backing Track 90 BPM
Deep Atmospheric Guitar Backing Track in C# Minor/Major
Deep Atmospheric Bass Backing Track in C# Minor/Major
Deep Atmospheric Drumless Backing Track 90 BPM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2437bc2108e940624921a3809ff000f474e6b48b3db8515cca99eac71cb33cad. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2275493 — a six-check JSON result.
Deep Cinematic Guitar Backing Track in C# Minor
Deep Cinematic Bass Backing Track in C# Minor
Deep Cinematic Drumless Backing Track 75 BPM
Dreamy Mellow Guitar Backing Track in C# Major
Dreamy Mellow Bass Backing Track in C# Major
Dreamy Mellow Drumless Backing Track 100 BPM
Groovy Atmospheric Guitar Backing Track in F# Minor
Groovy Atmospheric Bass Backing Track in F# Minor
Groovy Atmospheric Drumless Backing Track 88 BPM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5841121fe70329ba949d48d34d44b7563557a084c0105ccb4869ee1362f773. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYZ2326995 — a six-check JSON result.
Hopeful Groove Guitar Backing Track in B Major​/​Minor
Hopeful Groove Bass Backing Track in B Major/Minor
Hopeful Groove Drumless Backing Track 75 BPM
Spacey Fusion Bass Backing Track in D Minor
Spacey Fusion Drumless Backing Track 100 BPM
Peaceful Mellow Backing Track in E Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af8f67fb4bc7fe09ecb6fd4d0a05b9ecd0c15fd2f5ec5e17b9ef1bc42439fb7. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN52303815 — a six-check JSON result.
Peaceful Mellow Bass Backing Track in E Minor
Peaceful Mellow Drumless Backing Track 140 BPM
Midnight Mellow Backing Track in G Minor
Midnight Mellow Bass Backing Track in G Minor
Midnight Mellow Drumless Backing Track 80 BPM
Epic Cinematic Bass Backing Track in D Minor
Epic Cinematic Drumless Backing Track 115 BPM - 6​/​8
Ambient Rock Bass Backing Track in C# Minor
Ambient Rock Drumless Backing Track 75 BPM
Fusion Groove Bass Backing Track in D Minor
Fusion Groove Drumless Backing Track 88 BPM
Alternative Rock Guitar Backing Track in C# Minor
Alternative Rock Bass Backing Track in C# Minor
Alternative Rock Drumless Backing Track 85 BPM
Epic Melodic Rock Backing Track in E Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe248a3a099d572d83af2aa182f419bac1ae61924a312a42efdd5ef285d2c332a. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52499807 — a six-check JSON result.
Epic Melodic Rock Bass Backing Track in E Minor
Epic Melodic Rock Drumless Backing Track 135 BPM
Ambient Groove Guitar Backing Track in C Minor
Ambient Groove Bass Backing Track in C Minor
Ambient Groove Drumless Backing Track 150 BPM
Funk Fusion Guitar Backing Track in C# Minor
Funk Fusion Bass Backing Track in C# Minor
Funk Fusion Drumless Backing Track 110 BPM
Dramatic Cinematic Backing Track in B Minor
Dramatic Cinematic Bass Backing Track in B Minor
Dramatic Cinematic Drumless Backing Track 85 BPM
Fusion Groove Guitar Backing Track in F# Minor
Fusion Groove Bass Backing Track in F# Minor
Fusion Groove Drumless Backing Track 90 BPM
Funk Fusion Guitar Backing Track in D Minor
Funk Fusion Bass Backing Track in D Minor #002
Funk Fusion Drumless Backing Track 100 BPM #002