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.