OpenTechnical

OT-2026-000042439

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold 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-2026-000042439) never changes.

Identity and time

Publication numberOT-2026-000042439 · never reused
Internal UUID01a0ae7a-5d75-7b2b-a743-788a95456f34 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042439
StatusPUBLIC

Content hashes

Canonical text0d415d068c56ebb0fedb0d01e6773de0dc1fdcc650f6eff58b47d7143179a3e8
Markdown07d82f6a30ea675f25df6ca2a2c80c44fbc68c48ce112949d8081ef7623ed820
PDF
Publication page27bdcc591b9c12c09a6b39c6228094840643ca556633e799b026c10274a6b6b8
Manifest98d198591f082d7873144ebd47220fc7f026a9eb56450dae2b5018347e31e68e

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
SignatureBf1zhoovLQ5oQC/HCohbxHXb/5zv3fe5H/zNTOInDXvFr1TX/rQ82uj1nHou6OoBnEuG76ofULpI9rhU8lcuCw==
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

2026-09-17T11:16:14.518464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042439
observed 27bdcc591b9c12c09a6b39c622809484...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:14.501735ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042439/manifest.json
observed 98d198591f082d7873144ebd47220fc7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:14.484937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042439/publication.md
observed 07d82f6a30ea675f25df6ca2a2c80c44...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:14.468679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042439/publication.txt
observed 0d415d068c56ebb0fedb0d01e6773de0...
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.