21 Hungarian Dances, WoO 1: No. 18 in D Major (version for piano 4 hands)

Recording identifiers

ISRC

US7851400165

CopyrightID (CopyrightChains transaction hash)

0x69850d606241a68d228a25610d3a7a554be41952f8f8c46fd162f61ea8f66979

Copyright registration time

2026-07-07T16:45:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:091c003d7f806326968cc72d92f762b94ee9a1ab33547bf8c7d3208560c5f1ea

• Verify the CopyrightID on CopyrightChains
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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.