OpenTechnical

OT-2026-000089254

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000089254) never changes.

Identity and time

Publication numberOT-2026-000089254 · never reused
Internal UUID01a0ae9b-db00-767f-9863-ed80dee0df0f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089254
StatusPUBLIC

Content hashes

Canonical text3e4e8456f79e310781e6fc1573b70fc0d52a3444ea4c83c50f94d87856126cd7
Markdown6efbe83036759882f0db32fe10419470b61cf1616a84e161e9c48c2e5092650d
PDF
Publication page6848f0e8dbb8f0b6087e371eb8d907cc1e0359afe5395be8205f6a7403668a0c
Manifest782623fdf37b0d44adc0453e0793794dd37a192a59f41c515e7edeb64e33b615

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
SignatureQgpne2Njb9qrgYeMoAcXRaIplErLh7yJh13yF56o4CwgooVDpDFSXe1fOm3Xald9zlT/5PksOmmRQbtYUoCeBQ==
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

2026-09-17T09:47:17.366087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089254
observed 6848f0e8dbb8f0b6087e371eb8d907cc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:17.349877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089254/manifest.json
observed 782623fdf37b0d44adc0453e0793794d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:17.332929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089254/publication.md
observed 6efbe83036759882f0db32fe10419470...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:17.315926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089254/publication.txt
observed 3e4e8456f79e310781e6fc1573b70fc0...
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.