Prelude

Recording by Astor Piazzolla.

Recording identifiers

ISRC
FRZ810303138
CopyrightID (CopyrightChains transaction hash)
0xa4c1f899a82644a7c292e37b1c904c04a216e1a2dcb7c6bebec33246064820f9
Copyright registration time
2026-07-07T02:23:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:83c36143f9e46159497f40c4cf3a2b297ba166be30601609450af58ebd7be895

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.