OpenTechnical

OT-2026-000071309

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, plant vacuum 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-2026-000071309) never changes.

Identity and time

Publication numberOT-2026-000071309 · never reused
Internal UUID01a0ae91-e0ec-735c-9ae7-1fc310380426 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071309
StatusPUBLIC

Content hashes

Canonical text805aca9fe1e20584006ea72618eee32511ce0e69fa2fa4492d6fe3a48999d0fa
Markdown87da425ad5b1b10052c8479ea42ca4015d3dd6de1676b179373557e46610d4be
PDF
Publication page2f15d12b33e4e315ea4ade02789029ef2d16e14eb0f1cba24e6b75ef25a2ca2d
Manifest478caa03fcb8e269b4f8404fc03ec55311748b01d6fa1a1fb6e1cc060e5c83d5

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
Signatureld6gWdycPX2Sk1SPasW2dBTiPi5mM72K/QFZxtOuzGZMs68fWFjpSDa4yk+eG4Uc5BQq6GABL2TY4h/fEQUQDw==
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

2026-09-17T10:24:53.754816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071309
observed 2f15d12b33e4e315ea4ade02789029ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:53.736616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071309/manifest.json
observed 478caa03fcb8e269b4f8404fc03ec553...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:53.716649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071309/publication.md
observed 87da425ad5b1b10052c8479ea42ca401...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:53.699437ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071309/publication.txt
observed 805aca9fe1e20584006ea72618eee325...
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.