OpenTechnical

OT-2026-000048583

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000048583) never changes.

Identity and time

Publication numberOT-2026-000048583 · never reused
Internal UUID01a0ae80-4de7-799b-a379-b85d09cd4d8a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048583
StatusPUBLIC

Content hashes

Canonical text35abb9fe013ac4fa7bd3d3cb30ac75524532f9a0ecb6705fdef4bc14f42794ea
Markdown61d7b40ea5268fed8b31ee75155c22a46ab3cc0affa275aa8474f39dae3ffec5
PDF
Publication page67a4d308b4b01996737f0eb5b81dc24d2cfed5b4a56fbca1564b8cfd6a2575ba
Manifest4412f602386fcb8012addefd12c7bebc2a9570c959a2e8f96466990a4c3f12ce

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
SignaturedGQ8TBIqVK7ArNGQws0LtHd+x8dhPNRjikF+padtRH6qNrokMls3FJNbderjnworob+SmfmncKofDg32duNRDQ==
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

2026-09-17T11:05:23.418275ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048583
observed 67a4d308b4b01996737f0eb5b81dc24d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:23.398981ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048583/manifest.json
observed 4412f602386fcb8012addefd12c7bebc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:23.380587ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048583/publication.md
observed 61d7b40ea5268fed8b31ee75155c22a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:23.362447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048583/publication.txt
observed 35abb9fe013ac4fa7bd3d3cb30ac7552...
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.