OpenTechnical

OT-2026-000073287

Publication integrity record

Foam pad vacuum gripper, two zone face, six outlet manifold, pump fed, supply line pressure sensor, pulsed 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-2026-000073287) never changes.

Identity and time

Publication numberOT-2026-000073287 · never reused
Internal UUID01a0ae92-efb7-7bf9-babb-13e4be2fb95f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073287
StatusPUBLIC

Content hashes

Canonical text2e894cb90d706bf39929a0a8350ba27d821e6ca92fd4a68d8e52ea01e9e08b04
Markdowne31f1ff8501d497b48ca51d7236c04d7500a77562802acf142e3797d561b43e6
PDF
Publication page1f70334e1eca73672647126d0f66157e52c494a7076aee905d97110be204580e
Manifest82013f0c35e14363ecdbc3ef9ce5010d0e9613325991def82decc09b5917dfca

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
Signature5aY4JI2PyLkVCcdDV7BCFIbOaoTCyhQCXYq6v3JryKP2TOGucCH+HoNKZqIlaAE/+Rfchts/cdprCdDoDdhnAA==
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

2026-09-17T10:21:17.639393ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073287
observed 1f70334e1eca73672647126d0f66157e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:17.620147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073287/manifest.json
observed 82013f0c35e14363ecdbc3ef9ce5010d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:17.602360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073287/publication.md
observed e31f1ff8501d497b48ca51d7236c04d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:17.583908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073287/publication.txt
observed 2e894cb90d706bf39929a0a8350ba27d...
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.