Violin Sonata No. 2 in Dorian Mode, C. 139: II. Aria

Recording identifiers

ISRC

CH1492445411

CopyrightID (CopyrightChains transaction hash)

0xb57778376234c25d274beb177bd43d65ee7f6c7733b2d2d1d22f1aba2612e60a

Copyright registration time

2026-06-25T23:37:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:0f6d72948a9116facb5801dcc3b22b95f08793d2380f72fe974f80243e8e716b

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
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What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.