Lento assai, cantante e tranquillo from String Quartet No. 16 in F Major Op. 135

Recording identifiers

ISRC

DEA740512475

CopyrightID (CopyrightChains transaction hash)

0x8a6c98770df2846de8942fdb6d9f5159644d9682b8c00596b6f82c0a9a7dafda

Copyright registration time

2026-07-07T15:37:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T08:56:20Z

Bitcoin block

957145

Canonical record hash

sha256:8dd2231623b8310bd0cfe520c6c100062185062a824ca9f74e8a2d737e409045

• 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.