Sibelius: 2 Pieces from Kuolema, Op. 44: No. 1, Valse triste (Piano Version)

Recording identifiers

ISRC

GBAYC1302102

Release date of the album this recording appears on

2013-10-21

CopyrightID (CopyrightChains transaction hash)

0x73291e07c9418acc5903ba8edf19812fe54b429e47e492809863461a719c4775

Copyright registration time

2026-07-06T09:32:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T16:07:00Z

Bitcoin block

957061

Canonical record hash

sha256:ff7188bda53a02c39b3c672b0860a928a4f276fea3992738b5f34302495afec4

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC GBAYC1302102

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.