Piano Sonata 1.X.1905, JW VIII/19: II. Death

Recording by Leoš Janáček.

Recording identifiers

ISRC
FINDE2000208
Release date of the album this recording appears on
2021-02-05
CopyrightID (CopyrightChains transaction hash)
0x8db1429c945f2c93b4529265ba17c0206a070c26c7257eabad6035e6f6d70030
Copyright registration time
2026-07-07T12:01:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e214f23d1fa119f70b4eaabc46fc448a7692b3301b5c23c2d3c7eb3203f428f9

What this proof establishes

This recording was released in 2021, 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.