OpenTechnical

OT-2026-000028534

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, three stage ejector, manifold pressure sensor, 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-2026-000028534) never changes.

Identity and time

Publication numberOT-2026-000028534 · never reused
Internal UUID01a0ae72-e2f8-7a67-952b-18f0b589d983 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028534
StatusPUBLIC

Content hashes

Canonical text6c92accf26961e45880d3887e8edb572aacb31b8506bc20b9478faacbc80712f
Markdown5f66b85d6240ea0cf0d4505e7f1510a9ba1795d742841641c42208ea00c59f9b
PDF
Publication page6c4f2cffeb1dfcab1d35d8f519d4787f4b4f97c1fd99de6f52a3335af395b3f6
Manifest2a48e8e891a6651694bf0429a67df926bdf961523638d90b727e50966adbd00b

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
SignatureSpN6XirMtvuHFk/imnXZU4hBFZvsmg03IZEXoUlC+qmjlcAW5tsE1w5uvrXstTQF1xgH8I0PDP7SJrQi0BuODA==
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

2026-09-17T11:40:48.507085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028534
observed 6c4f2cffeb1dfcab1d35d8f519d4787f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:48.487603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028534/manifest.json
observed 2a48e8e891a6651694bf0429a67df926...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:48.468310ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028534/publication.md
observed 5f66b85d6240ea0cf0d4505e7f1510a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:48.450298ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028534/publication.txt
observed 6c92accf26961e45880d3887e8edb572...
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.