De profundis

Recording by Sofia Gubaidulina.

Recording identifiers

ISRC
DEB330177518
CopyrightID (CopyrightChains transaction hash)
0xa12cfcb3a17fcc7c6791136dc7939625076cff793df27e16dd1c5ab31ff5631b
Copyright registration time
2026-07-30T23:52:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T00:26:26Z
Bitcoin block
960327
Canonical record hash
sha256:4f067448ded16ea9b3ccf336b4abe5bd9ebb8232bc1fa237bb7811e3a120b9ff

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.