4 Sketches for Oboe, Bassoon & Piano: No. 3, Arioso

Recording identifiers

ISRC

PLA162171906

Release date of the album this recording appears on

2021-08-06

CopyrightID (CopyrightChains transaction hash)

0x19caf37eb95767e7d5c06c0f2444cadf19b18119c1adbb692fb59937d73f3571

Copyright registration time

2026-07-31T06:57:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T08:38:45Z

Bitcoin block

960370

Canonical record hash

sha256:f3fbf35b684b9251e1f3b02da0e64068092fbd226090c9cba1088a174658d22d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC PLA162171906

What this proof establishes

This recording was released in 2021, 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.