OpenTechnical

OT-2026-000026143

Publication integrity record

Foam pad vacuum gripper, three zone face, six outlet manifold, pump fed, 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-2026-000026143) never changes.

Identity and time

Publication numberOT-2026-000026143 · never reused
Internal UUID01a0ae71-a840-76b5-ad49-c90aaba170e6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:59.376802Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026143
StatusPUBLIC

Content hashes

Canonical textc1e7a4bdde5b8a5020714c4af13876083039a22e5e4a5082fd79f7891daee586
Markdown20427eaa1e4840da262c0b95766f982d5062592279dc356d3c7fa65d17a33e83
PDF
Publication page0c512f465fcbc8f24e6c96ab40959490b9daea1ccdeba56b16b6fcbacc44d452
Manifest4cac8b60c857597dd3426b53931a67c4403d533e0c06687a9e6768a475d14a93

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
SignatureaL28nBj6uJPsQhjL0PEOSnJEcwpSWsVPFXvoqGjtotUgeI9I7PSHt4nJeaGsF/xCua26qAw9AHaQsC55V/8cCQ==
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

2026-09-17T11:46:39.013720ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026143
observed 0c512f465fcbc8f24e6c96ab40959490...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:38.995814ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026143/manifest.json
observed 4cac8b60c857597dd3426b53931a67c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:38.976072ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026143/publication.md
observed 20427eaa1e4840da262c0b95766f982d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:38.955872ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026143/publication.txt
observed c1e7a4bdde5b8a5020714c4af1387608...
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.