OpenTechnical

OT-2026-000074070

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented 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-2026-000074070) never changes.

Identity and time

Publication numberOT-2026-000074070 · never reused
Internal UUID01a0ae93-2b8f-709b-acbf-21efac03c2c0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074070
StatusPUBLIC

Content hashes

Canonical text260ad5771622b7c55fa8645cd95476e88f4e0a19af6af3f4a2134eaae4d84483
Markdown66682e38a81ad756eb81a9c762a930fc7033d8bccd66a2580070b4161cc9af9a
PDF
Publication page1304f59fd0c8abd1ce5592ce0379765bce451e82c9237366ad0ffa064e44e5e1
Manifest1ef99b66b479b3f3524298747d4b8349d41908f0fa6df30cfc76fe14b3e96f43

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
Signature3eEj5vHUc3rR5Hm3OXoNFkb4EKbRjCtak5rXM6SgGjk95i+XdlGRv9qe7fD8F5IG4wfNdTo4JsCUu9s2OKj4AQ==
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

2026-09-17T10:20:24.111528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074070
observed 1304f59fd0c8abd1ce5592ce0379765b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:24.091090ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074070/manifest.json
observed 1ef99b66b479b3f3524298747d4b8349...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:24.072172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074070/publication.md
observed 66682e38a81ad756eb81a9c762a930fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:24.052705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074070/publication.txt
observed 260ad5771622b7c55fa8645cd95476e8...
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.