Piano Quintet in A, D.667 - "The Trout": 1. Allegro vivace

Recording identifiers

ISRC

NLA507706301

Release date of the album this recording appears on

1978-01-01

CopyrightID (CopyrightChains transaction hash)

0xb8261af162bfe9835c9c2e002f649b5b1bb657e8fed7e9c32828b9bed21b2f12

Copyright registration time

2026-07-06T02:58:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-06T06:56:49Z

Bitcoin block

956889

Canonical record hash

sha256:2c47ae3417e44ae33a31d1991998ef8d761dc2f64b47e778a2105c5647e62afc

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA507706301

What this proof establishes

This recording was released in 1978, 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.