OpenTechnical

OT-2026-000091820

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, pump fed, pressure sensor per zone, sustained blow-off 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-2026-000091820) never changes.

Identity and time

Publication numberOT-2026-000091820 · never reused
Internal UUID01a0ae9d-43ba-73be-846d-0087535f770f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091820
StatusPUBLIC

Content hashes

Canonical text8286f2f8301c0975feace5a87f9ef67a12d30de612a5deb27cb281044834adb0
Markdowne5332de41f0f534757caedbd7b3552865e0bf5ca24fbecd8244f8b1df5dd0ee8
PDF
Publication page3a1ca9fb37739de9a42640565a0aedbcee14dec4b9703b0cb1bda66794f5c41f
Manifest4ce68f9d4553d189700fc27a3b5fbd6b1e726558693e367b9ed860fe946962d8

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
SignaturesHB9XrV6rbtIQYJMDPfFY4UyGXLioS40ZUiCnG5tj3FIIEvRNvzL271ii+kNpZDS0F+2TkgpU08toyfG6zHmBw==
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

2026-09-17T09:42:44.008217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091820
observed 3a1ca9fb37739de9a42640565a0aedbc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.990329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091820/manifest.json
observed 4ce68f9d4553d189700fc27a3b5fbd6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.971482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091820/publication.md
observed e5332de41f0f534757caedbd7b355286...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.953037ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091820/publication.txt
observed 8286f2f8301c0975feace5a87f9ef67a...
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.