Études: No. 9

Recording by Philip Glass.

Recording identifiers

ISRC
DEN961631302
CopyrightID (CopyrightChains transaction hash)
0xacc1f0ad86c2f2a482f3603ad242e2baca42abd371f21e6f580e226ba2d1469b
Copyright registration time
2026-06-05T22:47:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:638a725e2838310acbdc21273332403b7592ac8882e050395067365f59b75e57

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.