The Second Waltz - Live Version

Recording by Dmitri Shostakovich.

Recording identifiers

ISRC
NLA309600317
CopyrightID (CopyrightChains transaction hash)
0xa9d86c5cdf9502c68170acfb27485351c4d4cddba966b2cebaeca650bb4f2dcf
Copyright registration time
2026-06-10T02:20:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:bb7005149ea87e31d2938aa208960ed3e897f7b4197c798f88c3b71cf9a9faf1

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.