OpenTechnical

OT-2026-000081210

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented after 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-2026-000081210) never changes.

Identity and time

Publication numberOT-2026-000081210 · never reused
Internal UUID01a0ae96-f373-74f1-954b-4039c0bd5967 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081210
StatusPUBLIC

Content hashes

Canonical text916abf70865fa1feab8d37b0e8f3ddac50251fadf2384aad37826379b15bdbef
Markdown3ce3f07f5d3a5e242a3d9fceb00f70ffb716b0011674606c165060952c738de6
PDF
Publication page3852a24cc8424e0fe461b2240eb84815cb784687b61a5b0a56b2530622c94c5d
Manifest23b81fe23be3b8d581b8d4f9eebddde52151b05b05263ef1faddc11b37bf7b45

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
SignaturetKpvLYggGQ3wqQd8RviMhnqpfEfnl87XhXn0KawZygZ5w9392Zh+APv5+gyzF4f3yQNgs5HQlZCob5rtoa2IDQ==
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

2026-09-17T10:01:17.285906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081210
observed 3852a24cc8424e0fe461b2240eb84815...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:17.266179ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081210/manifest.json
observed 23b81fe23be3b8d581b8d4f9eebddde5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:17.247412ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081210/publication.md
observed 3ce3f07f5d3a5e242a3d9fceb00f70ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:17.226996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081210/publication.txt
observed 916abf70865fa1feab8d37b0e8f3ddac...
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.