String Quartet No. 1 in D Minor, Op. 7: II. Kräftig

Recording identifiers

ISRC

SEAEB2167020

CopyrightID (CopyrightChains transaction hash)

0x6fd730ab17ceecfe61bbb2d5944164e2e44cc199cf62ff4f166ec7498980c07b

Copyright registration time

2026-07-30T09:36:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T09:57:33Z

Bitcoin block

960240

Canonical record hash

sha256:18c1fc2f9ae27dcbf3fc4b0a0003383992f027968ee90e4988916ce23b2ad80a

• 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.