3 Pieces in C Sharp Minor, Op. 2: I. Etude

Recording identifiers

ISRC

JPP592300001

Release date of the album this recording appears on

2023-04-21

CopyrightID (CopyrightChains transaction hash)

0xc4558441e94cc77c6aa0a3f051b360a116018f6d1a27b190be3327feace3726e

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T02:51:48Z

Bitcoin block

960337

Canonical record hash

sha256:d8224a4d31d73a495d43e645d7950ef74aa1e4ca484177090baea48926b4ea9e

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC JPP592300001

What this proof establishes

This recording was released in 2023. 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.