Backwards Down The Number Line

Recording identifiers

ISRC

USKF21055409

CopyrightID (CopyrightChains transaction hash)

0x9541b361ee58e1c8cf7f2fe3a47718c911e5f1484045678dee6601bcd317f982

Copyright registration time

2026-06-26T22:17:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:0b62034fe851aef1b0262b0716a6cd21d7b3fb4e7ba3e0c985e75a29139ad396

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.