ノクターン 第20番 嬰ハ短調 遺作

Recording by Ewa Pobłocka.

Recording identifiers

ISRC
JPVI00226830
Release date of the album this recording appears on
2013-09-18
CopyrightID (CopyrightChains transaction hash)
0x6e6462b9de4e013777de2e5c52b5958d415b990f29f661c194066d72bd5ab5ca
Copyright registration time
2026-06-08T04:18:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:775d3bc947408f3e76e5d8756f25bbdb8963381f5c4f2d6d78344be7c9354b3e

What this proof establishes

This recording was released in 2013, 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.