Piano Concerto No. 2 in F Minor, Op. 21: I. Maestoso

Recording identifiers

ISRC

DEF058300081

Release date of the album this recording appears on

1983-01-01

CopyrightID (CopyrightChains transaction hash)

0xb951473b7711edeb097d2fe2971d28be2100a8772a7ac14ac4691252ac6a8712

Copyright registration time

2026-07-29T13:42:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T14:28:24Z

Bitcoin block

960117

Canonical record hash

sha256:c91116c9da82e866964288a0f1aad756e9a1a4b41683ed10a8bc7b01833313d3

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEF058300081

What this proof establishes

This recording was released in 1983, 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.