Piano Sonata No. 32 in C minor, Op. 111: 1. Maestoso - Allegro con brio ed appassionato

Recording identifiers

ISRC

GBF071400801

Release date of the album this recording appears on

2014-01-01

CopyrightID (CopyrightChains transaction hash)

0x70aa79f29bad26e85452af3f923dc751cbfbfaa0c8f469a6e1cfdd29e944231d

Copyright registration time

2026-07-31T22:54:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T23:30:38Z

Bitcoin block

960478

Canonical record hash

sha256:e5bf17032ced7cb9f70e89eac4a705c5e7158d0e22173fc5cf8927f8dc9f7f64

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF071400801

What this proof establishes

This recording was released in 2014, 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.