Don Giovanni, K. 527 / Act I: "Notte e giorno faticar"

Recording identifiers

ISRC

DEF055830220

Release date of the album this recording appears on

1959-01-01

CopyrightID (CopyrightChains transaction hash)

0x22247fec446c7602239a28444d409d5342953b18e163d2dc26ae2c4836619f5e

Copyright registration time

2026-07-31T15:28:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:59:18Z

Bitcoin block

960427

Canonical record hash

sha256:2076883fc9aff559d7721bc4fe05c066978f15f4587e77d060ded7a4af7b2660

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF055830220

What this proof establishes

This recording was released in 1959, 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.