String Quartet No. 2 in A Major, Op. 68: II. Recitative & Romance. Adagio

Recording identifiers

ISRC

FR7JM2394060

CopyrightID (CopyrightChains transaction hash)

0x99638add0e7e3665ddb2d3e57b36cecc502b9459c2305087f4de11b2ff88ac67

Copyright registration time

2026-07-30T00:26:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T00:39:11Z

Bitcoin block

960179

Canonical record hash

sha256:d9477d899e125841a31f49ebdaa98783a680c5c6f7f1c0ea2b408d992215bfff

• 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.