OpenTechnical

OT-2026-000072900

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, three stage ejector, 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-2026-000072900) never changes.

Identity and time

Publication numberOT-2026-000072900 · never reused
Internal UUID01a0ae92-c814-7cdf-914f-b33dc879c106 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072900
StatusPUBLIC

Content hashes

Canonical texta4360c40f9f090224d5a065b288fbf06e161fb2c5aff2bf6bfd31182f8f0beb8
Markdownbcfd8e304e2e3f1aba4aad0312007dc366361a9362942be70e44d656553dca89
PDF
Publication page7c3cbff86bde0596a4c57a449d508cef1d3605eb660ced91474a93af3cfd7125
Manifestece75613781fa5ac5d769e42ad72f72f4396fe017a32d1409aa63e88e589c41e

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
SignatureOOU4LJpZt7YbE3JpgIuF8U39Qupu9uppwioXOMbfprOE77z9CrdIpO10+IE9W85jewUHrQ0JCxL4iyq/vdm8BA==
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

2026-09-17T10:21:48.481942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072900
observed 7c3cbff86bde0596a4c57a449d508cef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:48.464574ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072900/manifest.json
observed ece75613781fa5ac5d769e42ad72f72f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:48.447294ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072900/publication.md
observed bcfd8e304e2e3f1aba4aad0312007dc3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:48.430707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072900/publication.txt
observed a4360c40f9f090224d5a065b288fbf06...
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.