OpenTechnical

OT-2026-000061394

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, 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-2026-000061394) never changes.

Identity and time

Publication numberOT-2026-000061394 · never reused
Internal UUID01a0ae8b-7b42-7190-84fc-eac9acb8e9f7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:11.808334Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061394
StatusPUBLIC

Content hashes

Canonical text3c5d3767d8c54dbb34ceda43021bece9fdfda0f3500a37ffb11079fb00c2c357
Markdownc4045c8b719b2f673e2f9c0d0de23f99b82349df92a04d7516ceddd7fbadc0f1
PDF
Publication page2372b67ffad078f3ed95dcf2631c9c7b9c4f19b59d6732ca7ab8b5fe75acc809
Manifest64afbb998003de28db86370ba218f0643891974d30d1716278c2ed355f8da574

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
SignaturegKygE5qCkhzcAjbIF4fAX1F60++0uQstEFKoeKvQl5CzVrjSSD9Ld9ZYVDkl1KM6bN4aPhnIdhlDqziRu9u6CA==
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...

Independent retrieval

2026-09-17T10:41:15.334970ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061394
observed 2372b67ffad078f3ed95dcf2631c9c7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:15.317340ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061394/manifest.json
observed 64afbb998003de28db86370ba218f064...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:15.301613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061394/publication.md
observed c4045c8b719b2f673e2f9c0d0de23f99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:15.283764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061394/publication.txt
observed 3c5d3767d8c54dbb34ceda43021bece9...
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.