五木の子守唄

Recording identifiers

ISRC

QZ22B1805663

CopyrightID (CopyrightChains transaction hash)

0x8cda1e3bf44e75c338cef143b9c3923f38026a242281a96265d2b0d75833c4b1

Copyright registration time

2026-07-07T23:54:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:53:27Z

Bitcoin block

957124

Canonical record hash

sha256:8fc90c27a422fc760d161b1283c99f4117a2d52eac67057a6e3cf2ad2f8e22bb

• 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.