Symphony No. 2 in D Major, Op. 73: I. Allegro non troppo

Recording by Johannes Brahms.

Recording identifiers

ISRC
NLE422001601
Release date of the album this recording appears on
2021-04-23
CopyrightID (CopyrightChains transaction hash)
0xe2d9507620c14db48d7fe1357c0e7a224c5a69e73137d2c434830b4bd299b855
Copyright registration time
2026-07-07T06:11:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:daeb7e5cafd3a1ba9d03ad314f32cebe3ba52e0b15f11316c74bf0146881284d

What this proof establishes

This recording was released in 2021, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.