String Quartet No. 1 in C Minor, Op. 51, No. 1: II. Romanze (Poco adagio)

Recording identifiers

ISRC

DEF055901462

Release date of the album this recording appears on

2003-01-01

CopyrightID (CopyrightChains transaction hash)

0x804ccaa02d42881d7d4f60ee11dacfd249c622aa7f0a6f5dab8e036647d7686d

Copyright registration time

2026-07-06T23:05:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:66851d81b67962f7def33ac1d3d030d556e1cad8ae119754e2ff33703b3aec0f

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEF055901462

What this proof establishes

This recording was released in 2003, 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.