Quartet in E Minor, TWV 43:E2: I. Adagio

Recording identifiers

ISRC

USSM18900487

CopyrightID (CopyrightChains transaction hash)

0xa3a24a4ada4c6314ce0894c2b3c44ecced3ea0c4c4ba470685b8c8281e004cdc

Copyright registration time

2026-07-07T06:43:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:8b6181a2a446011ecc2641b3ac4daf165b77a3567c0604787906bf6184145929

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.