OpenTechnical

OT-2026-000038641

Publication integrity record

Single cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off after 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-2026-000038641) never changes.

Identity and time

Publication numberOT-2026-000038641 · never reused
Internal UUID01a0ae78-2d55-78a0-bd96-9a83526676fd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:25:06.661829Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000038641
StatusPUBLIC

Content hashes

Canonical texta7bcc091ce01c2cb478ad4e3d68afac2c284851d3e4985c07a91b122dcc8a0c5
Markdownd0352c375cb9f09faf4e54a5bda0470fcccf60da1d0318c8f96a3480a8a3934a
PDF
Publication pagee7eb8ece358bc93e30ab52e3a6f07e00b8f3cfdb724c81636a947991083837ec
Manifest4bb717d4143c2a3f6911b2d39a8f700d9f90e991fef9dbbe908bd250821660f2

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
Signature/MXYsHAZ+EB32XvL50ZVoBpW9oqiXsKbGhth4M5rcneSEolJbIiHqh1zQpjRRFgInYEZ74LBIEvDvfHGftDfAA==
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

2026-09-17T11:22:50.966213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038641
observed e7eb8ece358bc93e30ab52e3a6f07e00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:22:50.942794ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038641/manifest.json
observed 4bb717d4143c2a3f6911b2d39a8f700d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:22:50.923261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038641/publication.md
observed d0352c375cb9f09faf4e54a5bda0470f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:22:50.897606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038641/publication.txt
observed a7bcc091ce01c2cb478ad4e3d68afac2...
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.