OpenTechnical

OT-2026-000081097

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, two stage ejector, 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-2026-000081097) never changes.

Identity and time

Publication numberOT-2026-000081097 · never reused
Internal UUID01a0ae96-b977-74e5-bbe9-d40b1f913a66 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081097
StatusPUBLIC

Content hashes

Canonical textb3c7a06b7bd52c9c7f5cf8305c882ba36694d36c61ad60544cceb1937be1e428
Markdown4d0c5ec39f4ac8226dbda461b1199e6c52ab9f29a96b2526e24e158a7fa4a6c9
PDF
Publication paged90b78a2a4a3a446afa4f79b41431f002e5e64efb72ccc8e668dd8de1afd9f3a
Manifest06cdcb1e02111dd4972bd98176b6cf902dc2e85e034316f017344b5720f209a3

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
SignatureGUamPURSVyKkAACHShvQ9WUAuhvLMYcWoXZFtjcdhY1bnxqIZBAZmTsKIxL+c117g8LaeUsyQbqyJuKkVOVzBA==
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

2026-09-17T10:02:24.155883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081097
observed d90b78a2a4a3a446afa4f79b41431f00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.140025ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081097/manifest.json
observed 06cdcb1e02111dd4972bd98176b6cf90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.122658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081097/publication.md
observed 4d0c5ec39f4ac8226dbda461b1199e6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.105393ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081097/publication.txt
observed b3c7a06b7bd52c9c7f5cf8305c882ba3...
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.