A Certain Thickness

Recording by Duffrey.

Recording identifiers

ISRC
USQY51774030
CopyrightID (CopyrightChains transaction hash)
0x1b3e7283111b7c9c0aebfd4380993e687f8c4cdc00b56f2cffc1407ee9eee890
Copyright registration time
2026-07-29T15:27:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T15:38:18Z
Bitcoin block
960125
Canonical record hash
sha256:7c4311912ffceebe259dee1bc05af75099540c68738860170650b7d2e21dea80

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.