Morceaux pour piano in C major, op. 96-99 : Étude - Polka

Recording identifiers

ISRC

PLC062386625

Release date of the album this recording appears on

1892

CopyrightID (CopyrightChains transaction hash)

0x0bd5b390d36ca251c55bd1d127081384a86a37be1a5861781095d7cc551f79ae

Copyright registration time

2026-07-07T19:39:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:22:41Z

Bitcoin block

957120

Canonical record hash

sha256:4a0f379176ceefe2be814d6c944a050afe73e3759a4c1fc7ab8a2e3daabf6cb0

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC PLC062386625

What this proof establishes

This recording was released in 1892, 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.