OpenTechnical

OT-2026-000028986

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, pump fed, manifold pressure sensor, sustained blow-off before set-down

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-2026-000028986) never changes.

Identity and time

Publication numberOT-2026-000028986 · never reused
Internal UUID01a0ae73-2a9e-74ea-95fb-40a6facb15cf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028986
StatusPUBLIC

Content hashes

Canonical textf198c84dbf86302e7c12841430a0a3769afd066f6bd796e458b5e255029f4922
Markdown26353ad43ebebdfda525acf46d1674e322e9a12f987e1a3a09a684ec5f5708f3
PDF
Publication page3fe85b83e35a738cf6e53f350a75d5f0fc1c3830b68fde8f044a29f7126cd600
Manifest521658b5a2fed1bd1f2c9576731da8e24c23d7777c8f8a46c6bb246ac48a2264

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
Signatured2RsYvTz+N1HKW2Cr7k3xIs5QB0hy2N6cQ27P9EMR39GNylRcuROOX13cDe+fSQA05kNiWwbafOatBnfNdb0CA==
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

2026-09-17T08:20:31.188740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028986
observed 3fe85b83e35a738cf6e53f350a75d5f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:31.014468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028986/manifest.json
observed 521658b5a2fed1bd1f2c9576731da8e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:30.995849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028986/publication.md
observed 26353ad43ebebdfda525acf46d1674e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:30.974611ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028986/publication.txt
observed f198c84dbf86302e7c12841430a0a376...
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.