OpenTechnical

OT-2026-000054071

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, pump fed, supply line pressure sensor, pulsed 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-2026-000054071) never changes.

Identity and time

Publication numberOT-2026-000054071 · never reused
Internal UUID01a0ae85-b3a7-7182-8fe7-b62e4004ada4 · 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-2026-000054071
StatusPUBLIC

Content hashes

Canonical textd3d989c3048a5730e8f7a9d65e05a9c26207255909d61dc54245f07cd1b9eaeb
Markdownf66ff77fdc9ff0eda56ce1efca8cfb127bf325b9686c19348d0fd88fdb1a95f2
PDF
Publication pageb7100477235d52f58a05db57e13c3a0546dd3dc75454f5494d467f3a80737045
Manifest7223303e0edb7a38dd89ca18a7757eeae94d7c6a5610059db64daa3bb6b8604a

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
SignatureiWgarBHyCFg2vjSG2YHy6jMxK6okNrOrCLePUK4EjZz2g33fmAtiH0ofUGq2zWBFPhRjJ+1jEIzdf0lrIDZkCA==
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

2026-09-17T10:54:27.107688ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054071
observed b7100477235d52f58a05db57e13c3a05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:27.088207ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054071/manifest.json
observed 7223303e0edb7a38dd89ca18a7757eea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:27.066462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054071/publication.md
observed f66ff77fdc9ff0eda56ce1efca8cfb12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:27.047357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054071/publication.txt
observed d3d989c3048a5730e8f7a9d65e05a9c2...
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.