String Quartet No. 1 in F, Op. 18 No. 1: 2. Adagio affettuoso ed appassionato

Recording identifiers

ISRC

NLA507200689

Release date of the album this recording appears on

1989-01-01

CopyrightID (CopyrightChains transaction hash)

0x35f3b9bb0ae1d752a56ca29e502eddb8907761189a34596b254976d00f78e816

Copyright registration time

2026-07-07T05:22:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:feca3c11095f853959d64ad6d3ea3770e2c7790ba51d2aaeae7436b27d564404

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC NLA507200689

What this proof establishes

This recording was released in 1989, 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.