String Quartet No. 1 in E Minor, JB 1:105: II. Allegro moderato a la polka

Recording identifiers

ISRC

CZA161500565

CopyrightID (CopyrightChains transaction hash)

0xdc723f045c70c942df3b2eceefc0aa62d1f1ba8c0a3175ea4c9cd5702134b733

Copyright registration time

2026-06-24T19:57:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:8ee9525a590f98cdf0862b9930b939dd5abe796d6353d91eb3e205d92c670455

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What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.