Concerto for 2 Trumpets in C Major, RV 537: II. Largo

Recording identifiers

ISRC

HKI190121602

Release date of the album this recording appears on

2001-10-16

CopyrightID (CopyrightChains transaction hash)

0xde72789ac510bc4694ebd76c033796119860414a436ffd3426d89e80a3a8202e

Copyright registration time

2026-06-25T06:05:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:ee5d3c4d9077fedcc66cdb9b22dc0105f340dd4eee75f900cbf7a3c028509e89

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKI190121602

What this proof establishes

This recording was released in 2001, 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.