Three Arias from 'Il barbiere di Siviglia': Ecco ridente - Arr. for Two Bassoons by Bram van Sambeek

Recording identifiers

ISRC

NLY331208414

Release date of the album this recording appears on

2012-03-01

CopyrightID (CopyrightChains transaction hash)

0x5f45825968482257724edf0083c0360170b3fad97b6c09944e2458975b04474c

Copyright registration time

2026-07-31T04:03:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T04:14:58Z

Bitcoin block

960344

Canonical record hash

sha256:af3038db2bd1cfadd0326256d8bc7e31900b8cde9390c806c65af4a208418610

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLY331208414

What this proof establishes

This recording was released in 2012, 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.