Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio

Recording identifiers

ISRC

DEF057201166

Release date of the album this recording appears on

2025-03-28

CopyrightID (CopyrightChains transaction hash)

0xb30f4253f2a1143b2b8b1db1881411624b879bd6e014325d7729da9595be5076

Copyright registration time

2026-07-30T05:04:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T05:15:54Z

Bitcoin block

960209

Canonical record hash

sha256:2ae5c6b488e98a7998f64bff8ae4599e194028ec5501ec85c24eb5c9f5f8480b

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• Recording evidence summary for ISRC DEF057201166

What this proof establishes

This recording was released in 2025. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.