Egyszer

Recording by Rúzsa Magdolna.

Recording identifiers

ISRC
HUAZZ1900008
CopyrightID (CopyrightChains transaction hash)
0xbc57dfd6bbe83a6f0ab5c7cad952221867100c0acd41dbc8f67d0c60179d4176
Copyright registration time
2026-07-06T09:36:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-21T21:33:40Z
Bitcoin block
957061
Canonical record hash
sha256:6ffa38761d0f32478ed54502fc69570d8eab7285e5eb74eed63d53dad0b9cc83

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.