4 Orchestral Pieces, Sz. 51: IV. Marcia funebre. Maestoso

Recording identifiers

ISRC

DEF059204144

Release date of the album this recording appears on

2025-02-01

CopyrightID (CopyrightChains transaction hash)

0x23cdc51ed421477e76aa0452f30a8632ed6989b5cbb82b8759797d09ff9ac4f9

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T04:47:22Z

Bitcoin block

960207

Canonical record hash

sha256:d0737529b7bd881688236cbd66170755ccdecc19d4f1783caef5af038b163ffa

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEF059204144

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.