5 Movements for String Quartet, Op. 5: 4. Sehr langsam

Recording identifiers

ISRC

DEF059205284

Release date of the album this recording appears on

1995-01-01

CopyrightID (CopyrightChains transaction hash)

0x529d1c57a548a6fec8baadff27b1d8710a87e0070299b9582e93e042f81cdee5

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T18:48:12Z

Bitcoin block

960448

Canonical record hash

sha256:4d19592fe3707ca96ce5d4ab6ab9495155960a4db42c53c1a4ca8e860a61ea1a

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF059205284

What this proof establishes

This recording was released in 1995, 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.