OpenTechnical

OT-2026-000018947

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, plant vacuum fed, 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-2026-000018947) never changes.

Identity and time

Publication numberOT-2026-000018947 · never reused
Internal UUID01a0ae6e-d522-743b-b7ec-acef04d39cf6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018947
StatusPUBLIC

Content hashes

Canonical text3cd8d81f6ff5471f6ac4e3ebeef879acbc8324eb8ff10d5d94beffbe0816d548
Markdown33b4030cb28102d0cb7dde4a85263ebcdd0488fcb151e3471183691441a0c7e1
PDF
Publication pagec27aa290fa22914936461d94fc87568575f0c2cf986348ef8d555dea46aa1662
Manifest637af8961cbd8076f40166a849d84e386f4d248dece1f280d9d8a20cc7f67c77

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
SignaturecZr9hs0VMpusguvowOvZm2ZaeIVzcjcs6vTxBmrorEtCdC9LPYRdhXcm+HpEnK/C6WgVHanuViVwVST5UZdAAQ==
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

2026-09-17T11:59:36.990074ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018947
observed c27aa290fa22914936461d94fc875685...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:36.973424ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018947/manifest.json
observed 637af8961cbd8076f40166a849d84e38...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:36.954771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018947/publication.md
observed 33b4030cb28102d0cb7dde4a85263ebc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:36.935671ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018947/publication.txt
observed 3cd8d81f6ff5471f6ac4e3ebeef879ac...
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.