OpenTechnical

OT-2026-000090915

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, three stage ejector, pressure sensor per zone, sustained 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-2026-000090915) never changes.

Identity and time

Publication numberOT-2026-000090915 · never reused
Internal UUID01a0ae9c-c011-71d9-bbbc-e8644dc6881c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090915
StatusPUBLIC

Content hashes

Canonical text21f061a7ae348287fcdef9a97918d0f69f5d9f18ddc1b5ff9bd2c8f73c0e7510
Markdown5dcc58cf1f885b3802a864a647836e98dd2e9f9090c17ff4213600d9107da8ea
PDF
Publication pageac31173bd2bf72d2170e9bec508d31403d9b6b801869efe5de956075cbf85250
Manifesta890c6bd4adbb1be6ee5ce36defb166c85664cd4c3041ac915de1c86914f5c9c

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
SignaturewnVQOgK9m0ueK1DYzuHhm351CQAUUQ3k5YOw49miQu6eyAFxwYBpyRQ4pawwbhfQ5QVObgC+1/9KgHzZZAU2Cg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:44:07.729017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090915
observed ac31173bd2bf72d2170e9bec508d3140...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:07.712357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090915/manifest.json
observed a890c6bd4adbb1be6ee5ce36defb166c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:07.692822ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090915/publication.md
observed 5dcc58cf1f885b3802a864a647836e98...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:07.673634ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090915/publication.txt
observed 21f061a7ae348287fcdef9a97918d0f6...
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.