De profundis

Recording by Sofia Gubaidulina.

Recording identifiers

ISRC
RUAAX2102177
CopyrightID (CopyrightChains transaction hash)
0xc461affda042167b01847e9e4625c826ecdf23181338d861f0085b2ce1e1cf3e
Copyright registration time
2026-07-07T13:10:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:6190a80ca68e47e27b3054cbfd35bc036575f550b64e7e69d67ec16148e93d38

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.