OpenTechnical

OT-2026-000074319

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, 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-2026-000074319) never changes.

Identity and time

Publication numberOT-2026-000074319 · never reused
Internal UUID01a0ae93-7179-72b8-8ae6-36f7af5330f2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074319
StatusPUBLIC

Content hashes

Canonical text2f1f51ce53a42443e11941b8458918d63a72b5e6295788a072753970e3d44eae
Markdown31278cb9474423b2918d6ec402493f8d91238b469e78f8842fb3c3f11a38f863
PDF
Publication page07e0f33cc78f221f4f2403f60a4c08086f1378ae08d53cdcc18e1c9ac7a7f838
Manifesta8cf6b030312cfe41f2a4fc4d1d6ba70b71ae668d7c706b706333e5491dbc37e

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
Signaturewrnws/+sOrMMcsl0olojedw8DAz0OJF7dDXaUZ4HtGe8aEVFzOJPL81o/rAZT6TBAUq5vEpTfWtlmqlgxzL/Dw==
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

2026-09-17T10:19:13.948987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074319
observed 07e0f33cc78f221f4f2403f60a4c0808...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:13.929733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074319/manifest.json
observed a8cf6b030312cfe41f2a4fc4d1d6ba70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:13.910013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074319/publication.md
observed 31278cb9474423b2918d6ec402493f8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:13.891791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074319/publication.txt
observed 2f1f51ce53a42443e11941b8458918d6...
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.