OpenTechnical

OT-2026-000074204

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, single stage ejector, supply line pressure sensor, vented 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-2026-000074204) never changes.

Identity and time

Publication numberOT-2026-000074204 · never reused
Internal UUID01a0ae93-7178-7c0e-aec6-f5c15f99f236 · 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-2026-000074204
StatusPUBLIC

Content hashes

Canonical textf10f64bbca4a27c10160b0d6395c8f8bc159c4a1743b3ab8b22be850b8bfa489
Markdown93e1cabeae4e11509aa2cc963c897af279bd17ad4d1d8e6f1d4f65fcc58a193c
PDF
Publication pagea16f1308d4c6f66088a5ef3e0745229960b23c961e313547af56b4e3d624de1a
Manifest731cbed5a91002733cf6940d7716c38115fb3ce735f627be0ffb21a0db571d1c

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
SignatureqYYAoHfdjJkzHRwKZUJJLYfSxiqGNKDCO4hzK3qoAvtjJAcIaoai2zoJmAUy1K6bOr+GVW2mNV33u9Z68D7dAQ==
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

2026-09-17T10:19:03.614282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074204
observed a16f1308d4c6f66088a5ef3e07452299...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:03.594118ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074204/manifest.json
observed 731cbed5a91002733cf6940d7716c381...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:03.573994ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074204/publication.md
observed 93e1cabeae4e11509aa2cc963c897af2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:03.554471ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074204/publication.txt
observed f10f64bbca4a27c10160b0d6395c8f8b...
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.