Octet in E-Flat Major, Op. 20, MWV R20: IV. Presto - Live

Recording identifiers

ISRC

DEAQ70900186

CopyrightID (CopyrightChains transaction hash)

0x9f7d6c4d9cd0601c84d199150f438b242e8f2df2f8c4668104a80b30b2519169

Copyright registration time

2026-07-06T23:59:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:2a743cb9f49e0401dd9268a191cc7fb06260abcd19ebd50304b0a3d8e2affbbe

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.