OpenTechnical

OT-2026-000102198

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, 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-2026-000102198) never changes.

Identity and time

Publication numberOT-2026-000102198 · never reused
Internal UUID01a0aea4-50f3-75da-a9c7-be9b256dc05d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:19.361569Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000102198
StatusPUBLIC

Content hashes

Canonical text0beffcfdeb7538115ed22a9b32d506a0b2c4aba7dd72f26207c33e392bb1ba85
Markdown0ef260184debee727c308f0294d136d4f7fd57ee68e5b807923ecd43a3bc99e2
PDF
Publication page3d3d3da6bb0b2c92855e7bdf3da142ba1dafbfc84b23be3a676ddda3bb04996c
Manifestc058e29f16a665a7f10205a5b2ac6e8fd399639f274bcf5942a6887f92341b83

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
Signature53u7TedHkHgv4934hmOe/uCNVuHCkniugWPBNv1c4y9GwPTMrM7Z+KoMDnpm/P+wsFhWvrQlNLSFMa40I3AmCA==
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

2026-09-17T09:24:25.506876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102198
observed 3d3d3da6bb0b2c92855e7bdf3da142ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:24:25.487093ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102198/manifest.json
observed c058e29f16a665a7f10205a5b2ac6e8f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:24:25.467561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102198/publication.md
observed 0ef260184debee727c308f0294d136d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:24:25.430509ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102198/publication.txt
observed 0beffcfdeb7538115ed22a9b32d506a0...
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.