OpenTechnical

OT-2026-000042422

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, pump fed, sustained blow-off after 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-2026-000042422) never changes.

Identity and time

Publication numberOT-2026-000042422 · never reused
Internal UUID01a0ae7a-5d75-7ec5-9975-c1ea13c66eea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042422
StatusPUBLIC

Content hashes

Canonical text4c96af06c0e066143dba92449c60e6df1bbcf765d4b10c195474a7d8866774f1
Markdown4777a06198429cda3251e1310ad113df1a48b5e746f48deeec2b256f4b8d31d0
PDF
Publication page3d1125e5afabcaf9e7893199ef7e36d9d3550410d221edc393dfb925b0154e0b
Manifest626804c6a3bf62305b075c35e8565fa1c1b36ea23c6ec5a218f92874d4dbce52

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
Signature8G/tBWFfirtDzLbqPEv8rWrkwbl3skXwEqf+qKWlPEH1nrZIuy7mgSF62P3FXUnqUAQYb1mJnxzhu7ucUVWFDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:16:13.298546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042422
observed 3d1125e5afabcaf9e7893199ef7e36d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:13.282259ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042422/manifest.json
observed 626804c6a3bf62305b075c35e8565fa1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:13.265481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042422/publication.md
observed 4777a06198429cda3251e1310ad113df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:13.246910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042422/publication.txt
observed 4c96af06c0e066143dba92449c60e6df...
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.