ISRC QM4TX2123900
Verified recording
QM4TX2123900 is “Cello Concerto in C minor, W.C 77 : I. Allegro molto maestoso” by Johann Christian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x6e82b23ba01e3d50bb728ba8045a321083187a2944e053fbc5cc27d13d335c87 and independently timestamped
in Bitcoin block 960334 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2123900.
Recording identifiers
- ISRC
- QM4TX2123900
- Title
- Cello Concerto in C minor, W.C 77 : I. Allegro molto maestoso
- Artist
- Johann Christian Bach
- CopyrightID (CopyrightChains transaction hash)
0x6e82b23ba01e3d50bb728ba8045a321083187a2944e053fbc5cc27d13d335c87
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:3a6dbe8e33acfd9bf92a457aa71ae10034c85e300948160caaf837f4527fea8f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2123900
- Bitcoin block existence check
- https://blockstream.info/api/block/960334
Full record
Track page: Cello Concerto in C minor, W.C 77 : I. Allegro molto maestoso · Machine-readable JSON-LD