OpenTechnical

OT-2026-000005197

Publication integrity record

Porous face vacuum gripper, plant vacuum fed, contact triggered on the face

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-2026-000005197) never changes.

Identity and time

Publication numberOT-2026-000005197 · never reused
Internal UUID01a0a930-fb72-768d-867f-8d05d91dd82f · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:49:14.741432Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005197
StatusPUBLIC

Content hashes

Canonical text15a890989e7e189c5c560e6d65f21bf2ec26d02af39925ed99010ea48d35249d
Markdowna33b4efc7a9892a0774dd994a2d83d1191fbfdc5ddad32a744ab2ce4e44aace4
PDF
Publication page63dd096c5e18732bc9edb3b19c3688bcb46c715de97f83ceea691ff06d0219d2
Manifestb233b91c39716ad5fa12f84ff9b83ab4e3e0b81aed2d4f34293a83a5b37a4ecd

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
SignaturePC1zMo3Y5pstBy2fpmS7wYv//Z50QdQrqNrppd48cnrF+KK3cgTconDXp7fZa4woBqEVaD4Z3lbUQTgkkY50Bg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T07:50:04.870858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005197
observed 63dd096c5e18732bc9edb3b19c3688bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:04.732139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005197/manifest.json
observed b233b91c39716ad5fa12f84ff9b83ab4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:04.718931ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005197/publication.md
observed a33b4efc7a9892a0774dd994a2d83d11...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:04.704295ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005197/publication.txt
observed 15a890989e7e189c5c560e6d65f21bf2...
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.