Symphony No. 3, Op. 36, "Symphony of Sorrowful Songs": II. Lento e largo - Tranquillissimo

Recording by Henryk Górecki.

Recording identifiers

ISRC
HKI199406302
Release date of the album this recording appears on
2007-01-01
CopyrightID (CopyrightChains transaction hash)
0x88aaa0ef9e4224ce33c473d338c9a5faacd6eef212316cde572a191fee472ac5
Copyright registration time
2026-07-06T02:32:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:a6116d0f9d8775c587b3d10c12baff3224b7c33e088640477c58a792c3adeac3

What this proof establishes

This recording was released in 2007, 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.