ISRC GBF071740004
Verified recording
GBF071740004 is “Die Kunst der Fuge, BWV 1080: Contrapunctus IV” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x3a3cb5f0060d4b1c95b9dc103fca9d9b640b2ae270b2ea2871df3d0c146b76d3 and independently timestamped
in Bitcoin block 957064 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071740004.
Recording identifiers
- ISRC
- GBF071740004
- Title
- Die Kunst der Fuge, BWV 1080: Contrapunctus IV
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x3a3cb5f0060d4b1c95b9dc103fca9d9b640b2ae270b2ea2871df3d0c146b76d3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T16:43:08+00:00
- Bitcoin block
- 957064
- Canonical record hash
sha256:8a78ab36029847d2edca2328abe57da448828d6712dfcdb274c9880bebd3c1ea- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071740004
- Bitcoin block existence check
- https://blockstream.info/api/block/957064
Full record
Track page: Die Kunst der Fuge, BWV 1080: Contrapunctus IV · Machine-readable JSON-LD