OpenTechnical

OT-2026-000013215

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, pump 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-2026-000013215) never changes.

Identity and time

Publication numberOT-2026-000013215 · never reused
Internal UUID01a0ae6d-6fc8-7779-8f52-147a639d49e7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013215
StatusPUBLIC

Content hashes

Canonical text5a464b141400d84b4a2d6e6bd0495d6fa305f60a922dd9a032715137da969c02
Markdownbf16350f292b093df03dfe8c8066babe8c3e80dce511e9b5cfc48c680908eb23
PDF
Publication page810a217e060d1092af9c053027aac970db958d47b26c4d227d99add4d5d984d2
Manifestd2d724a200f2d157f24f458b75255e64b8d0b3871ed62bfd100794eef3c0bd1b

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
SignaturexNHW59Hf2qO9hUxnEjrY38DpRnG6AblQdPG4MhHCUrP1vyLa4GOwFmfhhQAWl4BYWNwxykGEig2MOIruiGFWAQ==
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

2026-09-17T12:09:36.342287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013215
observed 810a217e060d1092af9c053027aac970...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:36.321661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013215/manifest.json
observed d2d724a200f2d157f24f458b75255e64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:36.301292ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013215/publication.md
observed bf16350f292b093df03dfe8c8066babe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:36.278546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013215/publication.txt
observed 5a464b141400d84b4a2d6e6bd0495d6f...
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.