Der Rosenkavalier, Op. 59, Act I: Ach! Du bist wieder da!

Recording identifiers

ISRC

DEF058231018

Release date of the album this recording appears on

1984-01-01

CopyrightID (CopyrightChains transaction hash)

0x9b67abf60691b25682ac4480407e1685d01733bf59daee5cd04714f3ee3f97a6

Copyright registration time

2026-07-07T14:25:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:fec5eb95ba3c8d0d67e6a978d994775b07c57a1b6cbf22cf61aa0a6bc6fcd625

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF058231018

What this proof establishes

This recording was released in 1984, 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.