OpenTechnical

OT-2026-000066515

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000066515) never changes.

Identity and time

Publication numberOT-2026-000066515 · never reused
Internal UUID01a0ae8e-ce41-748f-b863-17708e3f3df7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:49:49.649149Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000066515
StatusPUBLIC

Content hashes

Canonical text04507e7ffc9273094a74e371ec0df09ea75fc93c9222745230638a9c85b4e384
Markdownbbc798c64934ccd940bdaf8225b38fcad3e64ae2c72d2c3e2e911dfa15dceed8
PDF
Publication page8061e5a77b3ef33123f7dd1f93b6e809b96d4516fd4bffcbee34b2af970e067d
Manifest994914526c66d886f4019f19eea7004c1e305ae5115bf65c209352f43c2b7b92

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
SignatureMao3nCb+Rb9rvkHRvV06OvtvdLxgsuV32LwVGTmD65/VKp4WdSsmu7vs+Z5tFuPe+U5TA5aCdyR8m3ncex1nCQ==
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

2026-09-17T10:32:46.607369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066515
observed 8061e5a77b3ef33123f7dd1f93b6e809...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:46.591075ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066515/manifest.json
observed 994914526c66d886f4019f19eea7004c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:46.575431ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066515/publication.md
observed bbc798c64934ccd940bdaf8225b38fca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:46.556119ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066515/publication.txt
observed 04507e7ffc9273094a74e371ec0df09e...
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.