Trumpet Sonata No. 2

Recording identifiers

ISRC

HKI199715401

Release date of the album this recording appears on

1997-11-10

CopyrightID (CopyrightChains transaction hash)

0x043f9f5319e84d3a76d3f179f6f80b2cf0c56c6b681a6b41aaab7c6833070d71

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:20:15Z

Bitcoin block

960418

Canonical record hash

sha256:ba1d59d839225714c14f78ba00091352558fe8adbe5eacc24c04222ba1d87993

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKI199715401

What this proof establishes

This recording was released in 1997, 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.