Alto Rhapsody, Op. 53

Recording by Johannes Brahms.

Recording identifiers

ISRC
DEF058803300
CopyrightID (CopyrightChains transaction hash)
0xbc29abff923e6eecdc89966c0f30d61f28146c10904144bc4a1f359dfe20181c
Copyright registration time
2026-07-06T23:09:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2d0154d1019c136c97be1b2c11ef8c1e0b9ced92c37028b12df112830506ed13

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.