Maske in Blau: Einleitung

Recording by Fred Raymond.

Recording identifiers

ISRC
DEF066422310
CopyrightID (CopyrightChains transaction hash)
0x94d1bbc7a44b5b351c3cbd63f05e6577c0e050c00de53ff82437dacec3f4f2d1
Copyright registration time
2026-07-07T16:56:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:fa7f119248efd06f724f20577017f30602cb0e6097492694c9797250966ebb9f

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.