The Sphinx

Recording by Steven Feifke.

Recording identifiers

ISRC
QM3JE2101869
CopyrightID (CopyrightChains transaction hash)
0x1f29d6ea5cfc09d9a3e0be45abeddd137f803b0c1af014e126488d93b9a8f0b6
Copyright registration time
2026-07-07T18:14:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:39:04Z
Bitcoin block
957122
Canonical record hash
sha256:72ca40ab9a23cbfdda09eb7829686194b72bf9b1482cc3d7a3934d011bf5c79c

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.