Warum betrübst du dich, mein Herz, BWV 421

Recording identifiers

ISRC

DEN961731343

Release date of the album this recording appears on

2018-10-05

CopyrightID (CopyrightChains transaction hash)

0xdbb052ca06019d8a0cc593bf608eb28ff5a8f3cfe1f89aafeecd473088bd0b85

Copyright registration time

2026-07-29T18:40:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T19:35:34Z

Bitcoin block

960138

Canonical record hash

sha256:b18165eed7cefdaf29602182fed887293e2a5826a1f6713fcfcf21ed58201d64

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEN961731343

What this proof establishes

This recording was released in 2018, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.