ISRC NLK4J1900007
Verified recording
NLK4J1900007 is “Aus tiefer Not schrei ich zu dir, BWV 687 (Arr. For Piano Four Hands by György Kurtág)” by Johann Sebastian Bach,
registered on the CopyrightChains blockchain with CopyrightID
0xe732d8a8ab93a2f66ebe37d14a3593c5dff546913e1f62be8cf065546a9a4c6b and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK4J1900007.
Recording identifiers
- ISRC
- NLK4J1900007
- Title
- Aus tiefer Not schrei ich zu dir, BWV 687 (Arr. For Piano Four Hands by György Kurtág)
- Artist
- Johann Sebastian Bach
- CopyrightID (CopyrightChains transaction hash)
0xe732d8a8ab93a2f66ebe37d14a3593c5dff546913e1f62be8cf065546a9a4c6b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:a193f01a998a901592c9456a1d88ce32a0fc21f54d6dc6cddbcfdb446d654d4c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK4J1900007
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Aus tiefer Not schrei ich zu dir, BWV 687 (Arr. For Piano Four Hands by György Kurtág) · Machine-readable JSON-LD