巴哈: 郭德堡變奏曲

Recording identifiers

ISRC

TWAA72000222

CopyrightID (CopyrightChains transaction hash)

0x5f881ad75e69c2c2a67eeebb743579e19456a2e849fdd499b2c51ce2fd494728

Copyright registration time

2026-07-06T10:23:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-21T23:10:15Z

Bitcoin block

957056

Canonical record hash

sha256:935e711c0dbbe8fc7fdca058f6b779073b0eca2fe93a06265c939deb48779354

• 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.