13th Floor
Recording by Matthew Stevens.
Recording identifiers
- ISRC
- GB4DA1800119
- CopyrightID (CopyrightChains transaction hash)
- 0x10e2a0e32d739f5afd02afe03875ea212d724eb995b0b59048dd08bf6f5acbb1
- Copyright registration time
- 2026-07-30T06:16:51+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T06:39:12Z
- Bitcoin block
- 960216
- Canonical record hash
- sha256:8e5f3a187d4d8df3c25dc790bcd223ec8fb3eff32fdaa1c1efcf7120f8f68ed6
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.