Tango for Flute No. 5

Recording by Reza Najfar.

Recording identifiers

ISRC
USRDG0220704
CopyrightID (CopyrightChains transaction hash)
0xea7f872dc5ba65fcdb0c5238224021650420ef7f4a75cf0d27201316045f7e0e
Copyright registration time
2026-06-21T08:59:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:d4e964c1cb476f6d52dfd2e35b05b14a6dd9fc0a86b4cfaec0519120dbd53ac5

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.