Last Resort

Recording identifiers

ISRC

USDW10021726

CopyrightID (CopyrightChains transaction hash)

0x9463dd353429a423dce18f16727c8febbff8f8053b15c1758a2a076ac3c92d3d

Copyright registration time

2026-06-17T11:42:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-17T19:07:14Z

Bitcoin block

954130

Canonical record hash

sha256:1e3aeacc5ddf927e6392c9b47443daf81e15477f9036d135822788adac9db1d2

• 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.