OpenTechnical

OT-2026-000031555

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, pulsed 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-2026-000031555) never changes.

Identity and time

Publication numberOT-2026-000031555 · never reused
Internal UUID01a0ae74-87af-7882-9409-cf8eecb90c8f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031555
StatusPUBLIC

Content hashes

Canonical text4c30a66d1b3b7ea4bc962f49974c966f72ba19db149806b4cb9c4794f455302f
Markdown037ee609cd9a306a26a5ec2fd36bb4aa48ba0eaf532b046b1b07b5eda38e369e
PDF
Publication page5ec0095d3eda87e2f00c56f6852e7b7526a76e96c6a83a0ff2ef6da170775f1f
Manifest0aa77b0f9f87b65644790e94d937e8e8541252282cf6ae69a9646381fb75c022

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
Signaturev2JKZl5VIeE6EQjsSyxT5DxQg6uTRs72T1oVwrjyLHXyXVgUNl+P68fQFs5J7izB7l+k9yC78j7lfZaHANWcAA==
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

2026-09-17T11:36:24.030825ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031555
observed 5ec0095d3eda87e2f00c56f6852e7b75...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:24.010979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031555/manifest.json
observed 0aa77b0f9f87b65644790e94d937e8e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:23.993045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031555/publication.md
observed 037ee609cd9a306a26a5ec2fd36bb4aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:23.975340ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031555/publication.txt
observed 4c30a66d1b3b7ea4bc962f49974c966f...
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.