Tragische Ouverture, Op. 81

Recording by Johannes Brahms.

Recording identifiers

ISRC
UKJE71900289
CopyrightID (CopyrightChains transaction hash)
0xcb95f62139fda5f4ea5226b0c8baff7c15d35dd8057d4c44d04dec6cc461ee89
Copyright registration time
2026-07-31T17:22:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T17:29:52Z
Bitcoin block
960441
Canonical record hash
sha256:c2fc0749b7f35091e1f06bfd0bc92a0cb1dc5f74025a5efba0a71fa8259d18ee

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.