OpenTechnical

OT-2026-000047495

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, single stage ejector, 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-2026-000047495) never changes.

Identity and time

Publication numberOT-2026-000047495 · never reused
Internal UUID01a0ae7f-3e58-7a7b-89fe-619406c20a43 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:32:49.774666Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047495
StatusPUBLIC

Content hashes

Canonical text8f8c0598e1287303245c2555ca5f701bdeca7d98ce83358540cf3e93472db673
Markdowncde0c2b4dcce49cb0dc3352d881f78420e7bab35a9b6f70450d31397371567b4
PDF
Publication page3de5c6d4ba78c3fe93908397cbfb8a484c3a47c01f42ef9b33f749c0a324b85c
Manifest3334d0da3188ab0e020bbd85b4415c6ccec5adb99ad95aaf15e3ec6a3f5264e5

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
SignaturefK7nDPT9FH5M7aVynr4yy9l0Y59e0E7nlKZuTm9IxaG5T86K2QILmXeg7NBoZcg3lGPgr+TvlyZka73xPICHBg==
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

2026-09-17T11:06:32.290538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047495
observed 3de5c6d4ba78c3fe93908397cbfb8a48...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:32.271499ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047495/manifest.json
observed 3334d0da3188ab0e020bbd85b4415c6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:32.254433ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047495/publication.md
observed cde0c2b4dcce49cb0dc3352d881f7842...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:32.236645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047495/publication.txt
observed 8f8c0598e1287303245c2555ca5f701b...
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.