Symphony No. 9: Allegro Assai IV. - excerpt

Recording by Ludwig van Beethoven.

Recording identifiers

ISRC
USBC18300137
CopyrightID (CopyrightChains transaction hash)
0xb4672a71771df9187bbb1cbd2f4540b0ab1eeb02d3cb30da75ba10912576f376
Copyright registration time
2026-07-07T06:34:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f35cf8694f613703b4f3cd8dd98728c577b1f680e04748d251073f2978af4392

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.