String Quartet No. 4 in B-Flat Major, Hob. III:78 "Sunrise": II. Adagio

Recording identifiers

ISRC

USSM18100985

CopyrightID (CopyrightChains transaction hash)

0x2e30ae30853b04a59f7cd7faf9e33e444e31a3ed657969193bc989bb6b03a356

Copyright registration time

2026-08-01T00:13:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T00:40:43Z

Bitcoin block

960489

Canonical record hash

sha256:11525cbf438c66d28a17fd3246b716cef02e6b84ebfbb85e560ac7175812bbd9

• 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.