ISRC DEN961731342
Verified recording
DEN961731342 is “Warum betrübst du dich, mein Herz, BWV 420” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0x0683a72845236b44d78c6defbfed7407703f2740af1723e09f8803f6ef01c026 and independently timestamped
in Bitcoin block 960099 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961731342.
Recording identifiers
- ISRC
- DEN961731342
- Title
- Warum betrübst du dich, mein Herz, BWV 420
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0x0683a72845236b44d78c6defbfed7407703f2740af1723e09f8803f6ef01c026
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T11:30:20+00:00
- Bitcoin block
- 960099
- Canonical record hash
sha256:0c7b1c844af27eac443eab2d401e46ea2022e1a374efa1fcb6de113bc7e7a8b8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961731342
- Bitcoin block existence check
- https://blockstream.info/api/block/960099
Full record
Track page: Warum betrübst du dich, mein Herz, BWV 420 · Machine-readable JSON-LD