String Quartet No. 2: V. Allegro con delicatezza - stets sehr mild

Recording identifiers

ISRC

DEF056904295

CopyrightID (CopyrightChains transaction hash)

0x7e4b7fe6bb7f17949b18afdafd1951cc34e6d5f6e2829d9c53b5019d1537a0e8

Copyright registration time

2026-07-31T05:52:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T06:42:11Z

Bitcoin block

960360

Canonical record hash

sha256:b146f26cb5f9d8a2e206126d0f36224767c5b5bc7af6ba5e9638189b84acfa02

• Verify the CopyrightID on CopyrightChains
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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.