Two Waltzes in A Major, Op. 54: No. 1, Moderato

Recording by Antonín Dvořák.

Recording identifiers

ISRC
US5541202639
Release date of the album this recording appears on
2015-08-18
CopyrightID (CopyrightChains transaction hash)
0x2e287e0877eff1909ee8ef8b2198195ef311c23b3cf26bd98676a133d4fe5b41
Copyright registration time
2026-07-30T20:40:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T21:00:46Z
Bitcoin block
960314
Canonical record hash
sha256:97bf3cde03e956901beb389c57057db726be46c770b89d1a2364e03f145aa5a8

What this proof establishes

This recording was released in 2015, 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.