Bassoon Concerto in B-Flat Major, K. 191: II. Andante ma adagio

Recording identifiers

ISRC

NLA508721508

Release date of the album this recording appears on

2012-01-01

CopyrightID (CopyrightChains transaction hash)

0xe9af48f477f61803cdbee12be4a23f7d631dac51d71c535b36e185591bb4aa42

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T05:17:02Z

Bitcoin block

960348

Canonical record hash

sha256:a49a0eb0f5057ca4ec217618be6b46b6b5f818e83f041623d98d14194ddc7931

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA508721508

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.