OpenTechnical

OT-2026-000054171

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, single stage ejector, 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-2026-000054171) never changes.

Identity and time

Publication numberOT-2026-000054171 · never reused
Internal UUID01a0ae85-b3a8-78b1-8d03-65ca5343e612 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:53.019909Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000054171
StatusPUBLIC

Content hashes

Canonical textcbd800aaa0a8c804bfa309ccf3f4ff09c5b2596cee209a759807176a1fb20619
Markdown5b6e5b0dfa2248da0acc8f06a34756307574149ddd1768f44651cdd25321c831
PDF
Publication pageaa8c7203305b28cd7fe04bce4d5387bd7966ff1e3ff4ef25f573ec75c50ca59e
Manifestfd0fac3882ade1b4c90a674a7b0896d5c2adf94ed32f63fcedae5240015dbae0

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
Signaturelym9lndfpAGmgVOxGjUQMeJuNOZZD8LQdD+lIyPnx3vUbBDkeTG21VIRqkBIIa7MepQ3TxUVppNFdLtmA4cJDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:54:37.007966ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054171
observed aa8c7203305b28cd7fe04bce4d5387bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:36.988155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054171/manifest.json
observed fd0fac3882ade1b4c90a674a7b0896d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:36.970889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054171/publication.md
observed 5b6e5b0dfa2248da0acc8f06a3475630...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:36.952901ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054171/publication.txt
observed cbd800aaa0a8c804bfa309ccf3f4ff09...
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.