twice as tough

Recording by upsidedownhead.

Recording identifiers

ISRC
AULI02032970
CopyrightID (CopyrightChains transaction hash)
0xa88d7fd7d91c35e27f42b8ab149f91bb5aa21ab9c0fa1050ab352aadb504df54
Copyright registration time
2026-06-08T01:22:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:b2c144b7053b644b0f9f2a06ca69f7ffc96992a7d564f53407d4b56adc015b3d

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.