OpenTechnical

OT-2026-000018291

Publication integrity record

Foam pad vacuum gripper, three zone face, six outlet manifold, single stage ejector, pulsed blow-off before set-down, on a tool changer

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-2026-000018291) never changes.

Identity and time

Publication numberOT-2026-000018291 · never reused
Internal UUID01a0ae6e-b489-77ef-af37-7ae78dcd5d2a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018291
StatusPUBLIC

Content hashes

Canonical textd8a61c12e2505c84c2498af6ad299fe3a3e1802d2fbd34c0ced85e00cf6753c0
Markdown5dc5b15fdd067b5bcee38ff8c5acd615fb567c4fe29237d385e6aa759017bdab
PDF
Publication page9db593b313696aefb53dcd96ce08ec93d6a87a76b799f8e8e2bc4fcab17012b0
Manifest9237e33147ccd4c98e5728639eb370922e8c394e71d32f75d98887bfeb5c1e07

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
Signature8iVpdySHbGyuUlcuHtDXcYZhDBKiniuzrooGjUFEFWpYP75FM3Ze+VUfd4aF+b6y5A6BNh6qcO+0pHCV6Ok6Cg==
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

2026-09-17T12:00:09.559018ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018291
observed 9db593b313696aefb53dcd96ce08ec93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:09.528296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018291/manifest.json
observed 9237e33147ccd4c98e5728639eb37092...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:09.497902ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018291/publication.md
observed 5dc5b15fdd067b5bcee38ff8c5acd615...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:09.414223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018291/publication.txt
observed d8a61c12e2505c84c2498af6ad299fe3...
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.