Tragic Overture, Op. 81

Recording by Johannes Brahms.

Recording identifiers

ISRC
GBF076110081
CopyrightID (CopyrightChains transaction hash)
0xf710ac35c2755d51d78063dbd71f028dbd8082689f634c74357f45572b6cb289
Copyright registration time
2026-07-31T19:37:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T19:53:13Z
Bitcoin block
960455
Canonical record hash
sha256:2c895d388638e9463975107aaad8e1988d0cf295dbda3de8408011515004c2c0

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.