Mozart: Cats Duet, K. 625 "Nun, liebes Weibchen" (For "Der Stein der Weisen")

Recording identifiers

ISRC

GBPFW2000034

Release date of the album this recording appears on

2020-09-18

CopyrightID (CopyrightChains transaction hash)

0x977956e86ec82ccd3356f00bcb046e1a6f9d76d30d3ccf5a607d3ec69fca3c18

Copyright registration time

2026-07-31T15:15:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:27:29Z

Bitcoin block

960422

Canonical record hash

sha256:7a84d5bfc25b681cc936230341a18f33a68fa95c9143157d2c5ea1574c9fd0f7

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBPFW2000034

What this proof establishes

This recording was released in 2020, 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.