Ein deutsches Requiem, Op. 45: I. Chorus. Selig sind, die da Leid tragen

Recording identifiers

ISRC

NLA509003101

Release date of the album this recording appears on

1991-01-01

CopyrightID (CopyrightChains transaction hash)

0x9459dabb87d5eed82dceb4bd43b310e6d1ac813f2c01b961e409d95c165a1a6f

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T12:41:21Z

Bitcoin block

960106

Canonical record hash

sha256:bc0767914b790c3a37f8574647dc2840773fcba086b00910f0c1d57770691778

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA509003101

What this proof establishes

This recording was released in 1991, 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.