OpenTechnical

OT-2026-000029869

Publication integrity record

Two cup vacuum gripper, two outlet manifold, single stage ejector, manifold pressure sensor, sustained 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-2026-000029869) never changes.

Identity and time

Publication numberOT-2026-000029869 · never reused
Internal UUID01a0ae73-ac47-776a-a31f-f82c4be90290 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029869
StatusPUBLIC

Content hashes

Canonical text28d2ef3cb1cd53c3c0f4b63ea26234e14a73636e51269ba03f952c99e5c2ed1d
Markdown3a4fed5f907a6ea99b9bb90f0884f3c6c2bfa9a26dea444a4ec568d2c7160a2a
PDF
Publication page4074b3905233d91b378ec6e104b3ef0c1a9201854bbbdff8a754a31aaa73802a
Manifest3877e6ebeb7821349f5557a40333c74f60d6e467a4e606163f5b567f0124ca07

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
SignaturediWHwfLFqndr82vd9Wt+uThh62Ix8U79VjXGx+x04Q8zIPD2IfuIZzk6sWlwzES6igGQLlg+F88U8V2dRCBOCw==
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

2026-09-17T11:38:33.879440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029869
observed 4074b3905233d91b378ec6e104b3ef0c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:33.864144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029869/manifest.json
observed 3877e6ebeb7821349f5557a40333c74f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:33.846621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029869/publication.md
observed 3a4fed5f907a6ea99b9bb90f0884f3c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:33.829521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029869/publication.txt
observed 28d2ef3cb1cd53c3c0f4b63ea26234e1...
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.