OpenTechnical

OT-2026-000028650

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, single 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-2026-000028650) never changes.

Identity and time

Publication numberOT-2026-000028650 · never reused
Internal UUID01a0ae72-e2f9-78ee-85c3-784377cf2ace · 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-2026-000028650
StatusPUBLIC

Content hashes

Canonical textd07e2d35f04fe038dc65a4dbd5d0eed607119a167de7e878fa42b624c4eb4456
Markdown69cf3ee01e8eab438c62ee402d27690a68b3da726f51569cdc18ffaefa627000
PDF
Publication pagea5c69fd77b20b48998e98ae46afc8f66e1a40b6347f5c5a3dc177abd21acc73d
Manifest9a6454f876572a1291870e5f7b48d1f634f7d476b4e6783f3e8e7933f999ca1a

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
SignatureCe1ihY2nl/vZ3p88nx9mtTk1xxx6AJt45txRLkDREmJ/JC6fe1uUXRsZV8PhpKZE30/x5bBvn/dPW42cK+TMCA==
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

2026-09-17T11:41:31.606636ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028650
observed a5c69fd77b20b48998e98ae46afc8f66...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:31.588203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028650/manifest.json
observed 9a6454f876572a1291870e5f7b48d1f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:31.560418ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028650/publication.md
observed 69cf3ee01e8eab438c62ee402d27690a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:31.541770ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028650/publication.txt
observed d07e2d35f04fe038dc65a4dbd5d0eed6...
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.