OpenTechnical

OT-2026-000081240

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, supply line pressure sensor, vented after 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-2026-000081240) never changes.

Identity and time

Publication numberOT-2026-000081240 · never reused
Internal UUID01a0ae96-f373-72f8-a90f-21dfcff8ae8b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081240
StatusPUBLIC

Content hashes

Canonical text4450a805e9476845e6204cc059cd9d6fd51705bf064769e4745c6027f5e2e35d
Markdown105af4664b7a697d3da4cd6ebc74a997274cb1657516d074e1385e3f58f865a9
PDF
Publication page00a12f80b6bddb7259d2093b0100f4047dfa8a671421444b5525f89a848a3a3e
Manifestb462278a26319be335df71dd64385d3c429810b7c0ea8472c097cbb8e543c976

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
SignatureuGYmxM+c2y1hgtsC7QcybPD9VNikxmQJe9GzCr0FLOtFL99m1XK+nuo+isevmxTkMHYthkR6Oyp80aR8wfWHCg==
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

2026-09-17T10:01:19.736101ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081240
observed 00a12f80b6bddb7259d2093b0100f404...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:19.718312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081240/manifest.json
observed b462278a26319be335df71dd64385d3c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:19.700887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081240/publication.md
observed 105af4664b7a697d3da4cd6ebc74a997...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:19.683309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081240/publication.txt
observed 4450a805e9476845e6204cc059cd9d6f...
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.