24 Preludes, Op. 28: No. 4 in E Minor. Largo - Recorded 1974

Recording identifiers

ISRC

DEF057430604

Release date of the album this recording appears on

2025-04-02

CopyrightID (CopyrightChains transaction hash)

0x6a774d7ea19182379bebe134adef9b0c383a9d9cf1c6d068d5fd1638c6c91adf

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T00:58:21Z

Bitcoin block

960330

Canonical record hash

sha256:d593a41aedf5f724ed258d3b98363aa4d169eda0c4b63554093b34ef7b1707be

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF057430604

What this proof establishes

This recording was released in 2025. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.