OpenTechnical

OT-2026-000027581

Publication integrity record

Six cup vacuum gripper, six outlet manifold, pump 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-2026-000027581) never changes.

Identity and time

Publication numberOT-2026-000027581 · never reused
Internal UUID01a0ae72-6999-7da9-b64f-75c5eb71069b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027581
StatusPUBLIC

Content hashes

Canonical textf13189f1385b9f42858cf4561457233de03fb08987c5801588d76f27f6176eb2
Markdown12ace0dfb0b5fdb9526c204ef469212fbdebbab017a88d7cd8ebfb0e93265ed6
PDF
Publication page247e8bfca696ccf73803dbf3093fd35020cd59a59a80cd13ecbd4e042b3515d5
Manifest88d6ccc8e285cdf10c6b141afb061f2c2358030feb1445fdf1922be7f0ee231f

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
SignatureBtkZB9HwF9Kn81VNkaQu36ZpBf10KQ2vtjTPWQ+FO5BzAZMmoUPOfruv9AvTZDcxaqLx3PiaMcJmphhpxoHJCw==
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

2026-09-17T11:43:04.541977ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027581
observed 247e8bfca696ccf73803dbf3093fd350...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:04.522599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027581/manifest.json
observed 88d6ccc8e285cdf10c6b141afb061f2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:04.505374ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027581/publication.md
observed 12ace0dfb0b5fdb9526c204ef469212f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:04.487644ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027581/publication.txt
observed f13189f1385b9f42858cf4561457233d...
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.