Second Waltz

Recording by Dmitri Shostakovich.

Recording identifiers

ISRC
DEUM70501659
Release date of the album this recording appears on
2016-02-29
CopyrightID (CopyrightChains transaction hash)
0xd0f20fa591d2287c6e6ee015e5472de06a9d6c40f4ca33710042e9bfb568c5e3
Copyright registration time
2026-06-04T15:42:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:6d155f548ab416e2fd4818bce9ff069669819c7e8ac2edc8b80f693917809dcf

What this proof establishes

This recording was released in 2016, 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.