Retrograde

Recording by Striking Matches.

Recording identifiers

ISRC
USUM71704375
CopyrightID (CopyrightChains transaction hash)
0x46a92277eaca68b1eca6b98dd89727bc55e7b906563d26f5c674074e55d4008c
Copyright registration time
2026-07-07T08:06:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:293799639d9c80e41403b786b531b6e5dd96eaca8e4746996403a1cac007c138

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.