21 Hungarian Dances, WoO 1: No. 4 in F Minor. Poco sostenuto

Recording identifiers

ISRC

GBAYC1800609

Release date of the album this recording appears on

2023-07-07

CopyrightID (CopyrightChains transaction hash)

0x1a06c0bd755760f275f005902af84ad06ae83fe986fbe1fde7c790e786ba4c19

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T06:42:11Z

Bitcoin block

960360

Canonical record hash

sha256:82b83f5504e27e65adf4a2e85de9c90b3ee389ff57939285d930c1910c4c1135

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC1800609

What this proof establishes

This recording was released in 2023. 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.