ISRC ITBZ82100827
Verified recording
ITBZ82100827 is “Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 8b, Polonaise in F Major, BWV Anh. 117b” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x6c2bddab938626fbcfd5c5950f959ac196d3ad8b3e9fb2e7689e6d522537658a 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/ITBZ82100827.
Recording identifiers
- ISRC
- ITBZ82100827
- Title
- Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 8b, Polonaise in F Major, BWV Anh. 117b
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x6c2bddab938626fbcfd5c5950f959ac196d3ad8b3e9fb2e7689e6d522537658a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:b23d61ac8e3fbc07c70dfd034aaa9bd52ed81ad17a33c8c47b2c247a3ba819d5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBZ82100827
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Notebook for Anna Magdalena Bach (1725) [Excerpts]: No. 8b, Polonaise in F Major, BWV Anh. 117b · Machine-readable JSON-LD