OpenTechnical

OT-2026-000073883

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, plant vacuum 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-2026-000073883) never changes.

Identity and time

Publication numberOT-2026-000073883 · never reused
Internal UUID01a0ae93-2b8e-7632-ae2e-3c66a6e0fd51 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073883
StatusPUBLIC

Content hashes

Canonical text662b72c425b0af012468b30dcf4837aa2689f380ba985257dc9141913cb7decf
Markdownc734ca79757bc7afc3e0993ea3e88cdc3a85d2e0c7f2be0800029c5cd1fba27f
PDF
Publication page7dd3bd3d1e0697769ad9d13239d7dcb0e4f254b5a4081996c5892ba43087cb81
Manifestdc240d0da32ec405247e9594de69db3d34e387000ccab609decdcfccebfc5c4b

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
SignatureGTuIjwb+GSqyH16UF/yObfsEamqachpCmxXsfJtEEhq0tCEDdzKQ5Aecg6r/8kY2K3SfwRmM11f0PruIqcgBDg==
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

2026-09-17T10:20:02.024422ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073883
observed 7dd3bd3d1e0697769ad9d13239d7dcb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:02.006390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073883/manifest.json
observed dc240d0da32ec405247e9594de69db3d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:01.988655ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073883/publication.md
observed c734ca79757bc7afc3e0993ea3e88cdc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:01.968888ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073883/publication.txt
observed 662b72c425b0af012468b30dcf4837aa...
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.