16 Waltzes, Op. 39: Waltz 2

Recording by Johannes Brahms.

Recording identifiers

ISRC
HKI199624313
CopyrightID (CopyrightChains transaction hash)
0x7858633e512841e91a08a70cc203a77b5420cadf8b7041e5edae529d6120f4ef
Copyright registration time
2026-07-07T10:18:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9a4f2d1ed4f1ebaf3a9150f1ad3021a71466d3717313a2d4ef47bf3f198b56c1

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.