Siegfried

Recording by Kotaro Nakagawa.

Recording identifiers

ISRC
JPG750800423
CopyrightID (CopyrightChains transaction hash)
0x279b2bb2a95e02cd209ebf994b0b0e62a3cdf1565b67938d3e9a741a1d98f64b
Copyright registration time
2026-06-17T21:09:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:9245b2dce62fcd6400fe28b3f389763eca33828d02c1c59b553ccd9d82c0c8ee

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.