String Quartet No. 6 in B flat, Op. 18 No. 6: 2. Adagio ma non troppo

Recording identifiers

ISRC

NLA507300510

CopyrightID (CopyrightChains transaction hash)

0xf4b3bcae3e7bdbfafae3a058c2545bec5abdf0f23eb8755c821685335072ab71

Copyright registration time

2026-07-31T16:34:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T17:29:52Z

Bitcoin block

960441

Canonical record hash

sha256:ac0c50f9705f62572a089197bd4eb9ed291645891176db6fd9298636c9a333fd

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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.