String Quartet No. 3 "On Polish Folk Themes": I. Allegro quasi presto

Recording identifiers

ISRC

PLA161728601

Release date of the album this recording appears on

2017-07-21

CopyrightID (CopyrightChains transaction hash)

0xe01e68d62a05e95e18ef153bdd7445fa17fe8d236183256afd3f066afba19568

Copyright registration time

2026-07-07T19:22:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:22:41Z

Bitcoin block

957120

Canonical record hash

sha256:1e9a6dd6b44a8c964c0ce0b10bbb444e81efe04d79359b47a122b2ad83aba206

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC PLA161728601

What this proof establishes

This recording was released in 2017, 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.