Tango pro starou lady

Recording by Josef Laufer.

Recording identifiers

ISRC
CZA167900717
CopyrightID (CopyrightChains transaction hash)
0x625fc437f145914ff286b32cb3d4a63c88afea0a5631ac6a4d35505f2e570cb3
Copyright registration time
2026-07-07T03:08:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:22fe00459702ca5a2b51aa28c62e49094ac57f64a580d2cd84557ca08cd5305f

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.