No. 15 in A-Flat Major

Recording by Johannes Brahms.

Recording identifiers

ISRC
HKI199223515
CopyrightID (CopyrightChains transaction hash)
0x9f62fcf4be800d31c05558aa3ec7f0be16889a4a6fc48305ca4746fb2b6a2444
Copyright registration time
2026-06-12T01:31:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:f6619bd3e29bb02aeea98622f34bcd7305fca47d07908d0283dc577da810aaba

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.