Piano Sonata No. 3 in B-Flat Major, K. 281: Allegro - Excerpt

Recording identifiers

ISRC

GBUM72407603

Release date of the album this recording appears on

2025-02-28

CopyrightID (CopyrightChains transaction hash)

0x41529f9e3c0b9336220e5af18a7c1d1fd96fdf4d40e1ea76ed64e8f2b135dab4

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T19:35:34Z

Bitcoin block

960138

Canonical record hash

sha256:b0816709358d28d5c987e4fde22d5f7306bdf85dc5f6a1f799eaf057f89d4728

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBUM72407603

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.