Concerto for Bassoon and Low Strings: III.

Recording by Sofia Gubaidulina.

Recording identifiers

ISRC
NLA460912272
CopyrightID (CopyrightChains transaction hash)
0xf963d33db14ecfd93bfc1d848155f3c9e684c90c81554ccacc63303ba9a0fa0a
Copyright registration time
2026-07-07T17:13:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:13b215ef91a7e95a723752da5cbfcb9ae8ce1154af3d0bb2e58767d5a4d1b60f

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.