ISRC FRZ140339040
Verified recording
FRZ140339040 is “Weinen, Klagen, Sorgen, Zagen, BWV 12: IV. Aria "Kreuz und Kronen sind verbunden"” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0xfac7925e6079e3466153fce82be0eed5d1366d918187bf1ab7d743bb08c59886 and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140339040.
Recording identifiers
- ISRC
- FRZ140339040
- Title
- Weinen, Klagen, Sorgen, Zagen, BWV 12: IV. Aria "Kreuz und Kronen sind verbunden"
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0xfac7925e6079e3466153fce82be0eed5d1366d918187bf1ab7d743bb08c59886
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:376c3cd29e991f2b8857748c441681cbf388bf30ac530992694da25b1ad380d5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140339040
- Bitcoin block existence check
- https://blockstream.info/api/block/956889
Full record
Track page: Weinen, Klagen, Sorgen, Zagen, BWV 12: IV. Aria "Kreuz und Kronen sind verbunden" · Machine-readable JSON-LD