Pärt: Summa for String Quartet

Recording identifiers

ISRC

GBAYC9303113

CopyrightID (CopyrightChains transaction hash)

0xb8c3607defdc66864962f8a28e5b936deea47e84ef575cb8bad13a005cfa68a6

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T04:47:22Z

Bitcoin block

960207

Canonical record hash

sha256:d78ec1dbdd1264b31c63360bedf1c8576530c71d29f39a7b0d1e2e1aaa0c880e

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.