Seven Words for Cello, Bayan and Strings

Recording by Sofia Gubaidulina.

Recording identifiers

ISRC
NLA509012254
CopyrightID (CopyrightChains transaction hash)
0xae500347b4f1339c6c369c5b9dc9133a301cab859dd503ca4f9c398226ceedf8
Copyright registration time
2026-07-07T05:36:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:812bd11e218ab9b764cb5de67166368feb9f639bf24a049e3e4d2b28a27787c9

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.