Smetana: String Quartet No. 1 in E Minor "From My Life": II. Allegro moderato à la Polka

Recording identifiers

ISRC

GBAYC9003594

Release date of the album this recording appears on

2007-09-14

CopyrightID (CopyrightChains transaction hash)

0x9f39a9c7c4e3cb3c353073671b96f735b8c32f5e5703076d7de268a8e64e6024

Copyright registration time

2026-07-07T04:44:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:7c78ab4c9960bb65810b9ef8652f6b4ae7bb3f0bfc4f493e93fcde6dcdcbd3b3

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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• Recording evidence summary for ISRC GBAYC9003594

What this proof establishes

This recording was released in 2007, 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.