Tango for To

Recording by Alf Prøysen.

Recording identifiers

ISRC
NOX9X3716401
CopyrightID (CopyrightChains transaction hash)
0x27fb684d7cfa9d0337f72b7b773abf6b291a67a0a5e348acaf4420feca9a603c
Copyright registration time
2026-07-07T20:50:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:6df4e8447b8767087cc28380fa070b01665a9a9fc6748332d91577470cb159dd

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.