OpenTechnical

OT-2026-000047791

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, pump fed, pressure sensor per zone, pulsed blow-off before set-down

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000047791) never changes.

Identity and time

Publication numberOT-2026-000047791 · never reused
Internal UUID01a0ae7f-c420-721c-b1a7-9ae1fef6f80f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047791
StatusPUBLIC

Content hashes

Canonical text345dd053114c7aebad320767da1e4316649eca35c17c4b6cc1db0b0a3bdc55ba
Markdown1ba4152334f2cbed76049f8e2c94ba6948dbf3ff063f4883ea2ea40494a9870f
PDF
Publication page05c7f5d2dcf5a1f9686175e6f7b529de759f0417a7bd012f31da2e4921d887d1
Manifest9acd6b4451b0975677cfc8ddc63785bcc3a2959c979dc79ec05842f861bc58ed

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signatureqrlhd//XzCoud1XWrgy6gLspjX/Dr/3/xCQwgOzaO7pPSB+6M+xxKoovb0Sr0Vbjrv2gQjPk8LC1/1oGJIYPDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:05:41.323127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047791
observed 05c7f5d2dcf5a1f9686175e6f7b529de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:41.304719ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047791/manifest.json
observed 9acd6b4451b0975677cfc8ddc63785bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:41.285770ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047791/publication.md
observed 1ba4152334f2cbed76049f8e2c94ba69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:41.268868ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047791/publication.txt
observed 345dd053114c7aebad320767da1e4316...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.