OpenTechnical

OT-2026-000015141

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, supply line 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-2026-000015141) never changes.

Identity and time

Publication numberOT-2026-000015141 · never reused
Internal UUID01a0ae6d-ef47-7c57-bfac-81f8668272d1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015141
StatusPUBLIC

Content hashes

Canonical textf931cb468ed0f33054534dfb19989442a2b008e259575a1f0a85f14b6a338cb5
Markdownd76420b8ab31d97ae557929b4794bc48776899aa413865fbfc12d2389b746f82
PDF
Publication page47a597e436a75615b9c4beaf88896a4e8f7a51623f8cdafca2d77001cce9809e
Manifest208edf36c17c1cd7ca3825e99ea51e248a00ef3086913edcbf8d9ab769d7c1c5

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
SignatureucaFDiQdKeHrKm5dvM8H9npE/0zcO2ZCfYB2IuvEv/Oik5PttFgsjsZFpgD1FQBFpHZslMumu3hnpLFgD23VAw==
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

2026-09-17T12:05:44.710290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015141
observed 47a597e436a75615b9c4beaf88896a4e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:44.690402ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015141/manifest.json
observed 208edf36c17c1cd7ca3825e99ea51e24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:44.670670ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015141/publication.md
observed d76420b8ab31d97ae557929b4794bc48...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:44.650973ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015141/publication.txt
observed f931cb468ed0f33054534dfb19989442...
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.