OpenTechnical

OT-2026-000063250

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, common isolation valve, plant vacuum fed, vented 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-2026-000063250) never changes.

Identity and time

Publication numberOT-2026-000063250 · never reused
Internal UUID01a0ae8c-94ab-7ba7-af28-d940a6a6c8f2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:47:23.840289Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000063250
StatusPUBLIC

Content hashes

Canonical text2c09e954e543b5fda67104a9b2756bf6b8a2de1cc4b437832bee3b6d5a5b4b3c
Markdowna1123139a653d24a202a484edad2f92b9b0e3d95d000ea03792e4e7249c8f092
PDF
Publication page7907c670ea3d2237e4b18a25c43feb1f401f984d22440c98fcf7ec328e034fbf
Manifest96e34fc05dd5a4727c98ada54c4b53a16285855875bfa7efbfd7cccec0978597

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
SignatureSk3ySzJ/EG4uDdHO2X2GEe6oOlXw3V2oSiwsup/WzFN6kbN9fBYJuqBbPho/KfsYf5lyhRhhXIqFWzhBNfNwBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:39:08.091760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063250
observed 7907c670ea3d2237e4b18a25c43feb1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:08.073471ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063250/manifest.json
observed 96e34fc05dd5a4727c98ada54c4b53a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:08.055423ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063250/publication.md
observed a1123139a653d24a202a484edad2f92b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:08.037580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063250/publication.txt
observed 2c09e954e543b5fda67104a9b2756bf6...
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.