OpenTechnical

OT-2026-000103056

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, pump 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-2026-000103056) never changes.

Identity and time

Publication numberOT-2026-000103056 · never reused
Internal UUID01a0aea4-be3d-7d06-94ca-24d8101c071c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:47.343354Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103056
StatusPUBLIC

Content hashes

Canonical textd54c383f4cbdd0d3d1d91a9cb7040930f3582cf8c842c2ca074711bab88addba
Markdowne9b7bdfc30afec300213567951290a0f8e98c5fe4fe19d1dddf9613c98e6a6ee
PDF
Publication pagece91d21c8c3fc75cadf809935d1d8b6ec5349e6dda215d9f3d1cb773485dc97a
Manifest539f80add995ae092937ab7e7aa321e6aa58d289d0ee51b9584736cf8ce0af18

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
Signaturebbxa/cEyzcjRUYbHic6a83dRBJMEiIyOf9A7Oc7RImrD8RBEj2mZ2rNOCH2tJLoM8JT7YIoG4k6Mdhjmy2CFDw==
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

2026-09-17T09:23:10.915399ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103056
observed ce91d21c8c3fc75cadf809935d1d8b6e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:23:10.897752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103056/manifest.json
observed 539f80add995ae092937ab7e7aa321e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:23:10.880932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103056/publication.md
observed e9b7bdfc30afec300213567951290a0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:23:10.863549ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103056/publication.txt
observed d54c383f4cbdd0d3d1d91a9cb7040930...
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.