POC POC

Recording identifiers

ISRC

QZHZ52027284

CopyrightID (CopyrightChains transaction hash)

0x413cda729e01e23f6322f8111fc20f03b1173b8dc4467e5c806c84249af411e9

Copyright registration time

2026-06-04T09:27:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:1386ac7b9ffbac834a57e30b159c2d23a598156bbec7e3da3fe42dac1ce93776

• 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.