ISRC ITBZ82100826
Verified recording
ITBZ82100826 is “Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 8a, Polonaise in F Major, BWV Anh. 117a” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x896b96bc37ac13d2c8d5774de292b3896a8d53eac48093a716effc2fe8e55ed7 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/ITBZ82100826.
Recording identifiers
- ISRC
- ITBZ82100826
- Title
- Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 8a, Polonaise in F Major, BWV Anh. 117a
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x896b96bc37ac13d2c8d5774de292b3896a8d53eac48093a716effc2fe8e55ed7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:81594634543abc8770908828acee3b7fbdcc93da8008ead7d9db1a007ee9f962- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100826
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 8a, Polonaise in F Major, BWV Anh. 117a · Machine-readable JSON-LD