Vals en Mi Bemol Mayor, "Gertrude's Dream Waltz"

Recording identifiers

ISRC

USRDG0114143

Release date of the album this recording appears on

2017-07-12

CopyrightID (CopyrightChains transaction hash)

0x307a7efd20527cb45b4eee0805877ccd6ee52a8d110783de6914e7ea6e503a9e

Copyright registration time

2026-06-25T23:27:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:ad84b878680ef81b2a2bcb6e286d194dd7ce1698f5852617353c284bd5cf2724

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USRDG0114143

What this proof establishes

This recording was released in 2017, 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.