ISRC ITBZ82100846
Verified recording
ITBZ82100846 is “Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 32, Untitled Piece in F Major, W. A22 [Attrib. J.S. Bach's BWV Anh. 131]” by Johann Christian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x72b6d76f520c9897c1f143b11e8f4349abbde4e354256d11c38d4aa3a4dd26ad and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100846.
Recording identifiers
- ISRC
- ITBZ82100846
- Title
- Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 32, Untitled Piece in F Major, W. A22 [Attrib. J.S. Bach's BWV Anh. 131]
- Artist
- Johann Christian Bach
- CopyrightID (CopyrightChains transaction hash)
0x72b6d76f520c9897c1f143b11e8f4349abbde4e354256d11c38d4aa3a4dd26ad
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:e31ca37de25d0034a6e73bab16d05a90efd962eeed82a513e526d18631156a28- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100846
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 32, Untitled Piece in F Major, W. A22 [Attrib. J.S. Bach's BWV Anh. 131] · Machine-readable JSON-LD