String Quartet in B Minor, Op. 11: II. Adagio

Recording identifiers

ISRC

USNO18818109

CopyrightID (CopyrightChains transaction hash)

0xae45cf69a57214cb639d8651190c151d00db8069115a242225fda6d58fad4951

Copyright registration time

2026-07-06T04:37:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-06T06:56:49Z

Bitcoin block

956889

Canonical record hash

sha256:4438c22a73973fae8bc4b0dc02abdee3817cdc5152a1b0f35ab1e892d4e0a2bd

• Verify the CopyrightID on CopyrightChains
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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.