ISRC FRZ140339020
Verified recording
FRZ140339020 is “Weinen, Klagen, Sorgen, Zagen, BWV 12: II. Chorus "Weinen, Klagen, Sorgen, Zagen"” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x1abecd58fc2279935982b15ee14abf99d0b50079bfed99cf0095b7965491cd0e and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140339020.
Recording identifiers
- ISRC
- FRZ140339020
- Title
- Weinen, Klagen, Sorgen, Zagen, BWV 12: II. Chorus "Weinen, Klagen, Sorgen, Zagen"
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x1abecd58fc2279935982b15ee14abf99d0b50079bfed99cf0095b7965491cd0e
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:817776e5639bfa11c2802c0ed70b193de819b7a703b587a53ed5dffa9664667e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140339020
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Weinen, Klagen, Sorgen, Zagen, BWV 12: II. Chorus "Weinen, Klagen, Sorgen, Zagen" · Machine-readable JSON-LD