OpenTechnical

OT-2026-000004167

Publication integrity record

Bellows cup vacuum gripper, two outlet manifold, two stage ejector, vented after set down

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-2026-000004167) never changes.

Identity and time

Publication numberOT-2026-000004167 · never reused
Internal UUID01a0a90f-cec7-7ac8-a07b-f55bf1cb436d · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:13:00.618865Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004167
StatusPUBLIC

Content hashes

Canonical text43b9d20fbf24d6a86f15b1fbaf2ce2ee0a956e45a252560d8b04b41e79afec66
Markdown50452423da87190a835827d7ce1a81a34cede40330bd501e5fc8004c15a441dd
PDF
Publication page41e01b1b81e176fd716b3ce00371b31083201cc7b577392ae358076287e66b60
Manifestc1526828c11b9c6d040f2ec7ac5f7abcfa116dcdbcf2cd6ad741bdab51c4c141

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
Signature0gi9FwS6A5qp5g75KecYBXHQ78MeI8huUx68BO904A1DWbu9dMaQx7pPE0a5qxNLoC+UGkqnbZQ6XcHuNrUCCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T07:20:28.876582ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004167
observed 41e01b1b81e176fd716b3ce00371b310...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:28.738299ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004167/manifest.json
observed c1526828c11b9c6d040f2ec7ac5f7abc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:28.725355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004167/publication.md
observed 50452423da87190a835827d7ce1a81a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:28.712876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004167/publication.txt
observed 43b9d20fbf24d6a86f15b1fbaf2ce2ee...
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.