OpenTechnical

OT-2026-000071821

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, 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-2026-000071821) never changes.

Identity and time

Publication numberOT-2026-000071821 · never reused
Internal UUID01a0ae92-1e92-77b3-82c0-aba54194ce77 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071821
StatusPUBLIC

Content hashes

Canonical text92943317ad2e3e972d661e310437488f2bf2b02b37416a0484a0e99fb1abefb4
Markdown498f54a04254502248376ec4f6e2e3fe86fbb777f2a01a9db9a36e376d07c621
PDF
Publication page80b634bace044cbea49b7e4149dd59b69b3a13b43e9e9c03c35d7591aeea2de5
Manifest31c234b5b357b0a969db105316866205ac00c511894390ef37eb3bf8a6d7b75d

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
SignatureDAcgTXS8EFiGNp3uwOCNoMO+WTmGwHvn2mFNE+A5mtK2bbOVW2Gl61ZJjRmVq7ilNuiCbJjUdO62XJ/SLxrIBg==
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

2026-09-17T10:23:59.701003ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071821
observed 80b634bace044cbea49b7e4149dd59b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:59.683750ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071821/manifest.json
observed 31c234b5b357b0a969db105316866205...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:59.665510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071821/publication.md
observed 498f54a04254502248376ec4f6e2e3fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:59.648214ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071821/publication.txt
observed 92943317ad2e3e972d661e310437488f...
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.