OpenTechnical

OT-2026-000103933

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, two stage ejector, pulsed blow-off after 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-2026-000103933) never changes.

Identity and time

Publication numberOT-2026-000103933 · never reused
Internal UUID01a0aea5-15e7-7437-9c15-44305704257e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:09.781581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103933
StatusPUBLIC

Content hashes

Canonical text0d40045526e2e2064ac48e2a9b329a2bf892ecfad4b04dbb0aa19fb9429cad3c
Markdown9b17946bfb18021dcf318cf8246eaab55fbcc911b8766a1b5066fd096df4de24
PDF
Publication page6e3942ec4c3e7bf881b668e378c8ba532c990a2f129cd2ff47be1ba3ceb6cc1c
Manifest681681a49382f562520097c4976bf953dd362b0f14d6df5558ce5b56d2679825

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
SignatureXuZTHML2fjQC0J2QvnM3mbWEyI1df2y17FzvFeIFZtzMKYHADDa++/JA+2lmLkcXhHlY1Qf1JE1V/ItpeQ+XBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:21:55.887267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103933
observed 6e3942ec4c3e7bf881b668e378c8ba53...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:55.870072ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103933/manifest.json
observed 681681a49382f562520097c4976bf953...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:55.854158ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103933/publication.md
observed 9b17946bfb18021dcf318cf8246eaab5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:55.836692ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103933/publication.txt
observed 0d40045526e2e2064ac48e2a9b329a2b...
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.