OpenTechnical

OT-2026-000020811

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, single stage ejector, pulsed blow-off before set-down

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-2026-000020811) never changes.

Identity and time

Publication numberOT-2026-000020811 · never reused
Internal UUID01a0ae6f-65e3-7ddf-90cb-36c1919b7394 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020811
StatusPUBLIC

Content hashes

Canonical textdac5b8de81ca419710ed56cc0416cb592ef1e1b00930ecf61fdefef6822be1dd
Markdownc7cd4c0f3d2aa77b8fdca740d3439383d87c3e6e05e12ac1465bf4a26f3a5d36
PDF
Publication pageb9855079a8da2d68f1ada4362374b7aea599dbbb14a1711280080747b7118ba5
Manifest549214881f33910f78dd21cb53f1b07fc57fc9231a86cb26085b2fbad532da4a

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
SignatureVFb+8H2RXY/Ns/qDPeZ/ih/vyPuBmXAkQLMceqeCIleJf6I2inqw+wF9p+bjN/b61sw/ngaGg71bgZnioM2CCg==
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

2026-09-17T11:55:53.942497ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020811
observed b9855079a8da2d68f1ada4362374b7ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:53.925311ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020811/manifest.json
observed 549214881f33910f78dd21cb53f1b07f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:53.906055ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020811/publication.md
observed c7cd4c0f3d2aa77b8fdca740d3439383...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:53.887942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020811/publication.txt
observed dac5b8de81ca419710ed56cc0416cb59...
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.