OpenTechnical

OT-2026-000100139

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump fed, pressure sensor per zone, sustained 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-2026-000100139) never changes.

Identity and time

Publication numberOT-2026-000100139 · never reused
Internal UUID01a0aea3-3052-72fe-9b2b-dcadf905b795 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:05.469356Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100139
StatusPUBLIC

Content hashes

Canonical text265b40b7af51df3e19f24eae7b9f56efd8087a43e62933b6f2df66eee32250bc
Markdown84f4ff29d372d0981e8a9ee3d0e1946f170538e40f4b8451a3efc8d6caa88d28
PDF
Publication page0e80415ccab69b688b6291de84b30b686bc2770919d763233fc7189a5fca7347
Manifestf8a2574eb456251a3f641171c4326f770bc01fb99ffb103fe92af0b4e1871543

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
SignaturedGutibacEHBnWRxke9zQEYb1XRZOnj8uM8485UG78tUcfOQJGc8r1fnrk4MKg2QtyOZcmUJ7ZL64Yr6oxcYzCA==
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

2026-09-17T09:27:50.496183ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100139
observed 0e80415ccab69b688b6291de84b30b68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:50.475582ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100139/manifest.json
observed f8a2574eb456251a3f641171c4326f77...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:50.456311ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100139/publication.md
observed 84f4ff29d372d0981e8a9ee3d0e1946f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:50.437340ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100139/publication.txt
observed 265b40b7af51df3e19f24eae7b9f56ef...
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.