Ungarische Tänze, WoO 1: No. 2, Allegro non assai

Recording by Johannes Brahms.

Recording identifiers

ISRC
FR10S1611429
Release date of the album this recording appears on
2019-07-25
CopyrightID (CopyrightChains transaction hash)
0x2b1c794ab8a4e8506cb8159d6a8576b47136722febbbcd9b50877139494f07e2
Copyright registration time
2026-07-29T22:33:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T22:48:59Z
Bitcoin block
960160
Canonical record hash
sha256:65404f0e1c2c47ad3056a888c2a69405b3898b0db93ab4c7f1565e756fc7ea9a

What this proof establishes

This recording was released in 2019, 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.