Piano Concertino in G, Op. 73: I. Allegro Moderato

Recording by Johann Nepomuk Hummel.

Recording identifiers

ISRC
NLY331215113
Release date of the album this recording appears on
2012-12-12
CopyrightID (CopyrightChains transaction hash)
0xb8a3ec15ef69a5bd2fee0129ec74027acc04527264f62b360ee9f429d64049f8
Copyright registration time
2026-07-31T17:17:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T17:29:52Z
Bitcoin block
960441
Canonical record hash
sha256:c5ba83c765bbace226cf4a352c83f925677d5819b1ba9ba98c74c977edd411d9

What this proof establishes

This recording was released in 2012, 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.