That One from Ago

Recording by Mad Zach.

Recording identifiers

ISRC
US25X2100733
CopyrightID (CopyrightChains transaction hash)
0x774c0bcd228a6eaa087c18d07da484100490dd514ebe8b3d46c158c82c2b3b6c
Copyright registration time
2026-07-06T23:54:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:4f2acf3ee6d4b85e4421c3f415f4dc8ca37f8adc2eae69345bb5d2f28898a752

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.