OpenTechnical

OT-2026-000025175

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, three stage ejector, 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-2026-000025175) never changes.

Identity and time

Publication numberOT-2026-000025175 · never reused
Internal UUID01a0ae71-5fa5-739b-bf6d-673c16b50ab1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025175
StatusPUBLIC

Content hashes

Canonical text4bbdb036c086412903f8e5f0abbfe3333f7a6ceeb926d11b34d0a5714b5c3cf9
Markdownd89a4fbb1e960506fd0f4cd9f2a99ae3ac7083529c5500f4d9493355fbf31904
PDF
Publication pagebff7c98cbb6a71fe278f2bbf1b5f23837282600e859f3d22a284288fc371cff0
Manifestae9627ad74b8b81d880cdf110e28d9817f946b311eb625e09fc5494f5ee37d28

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
SignatureWmgP0IST3wMbbTcGEgMAFQLJJkhBgZgMNzSjryGxW/HXmxrBYJi7ZEuXbSVA2De8NrxjiPhkohyJSuIq6f1XDg==
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

2026-09-17T11:47:04.140666ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025175
observed bff7c98cbb6a71fe278f2bbf1b5f2383...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:04.121669ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025175/manifest.json
observed ae9627ad74b8b81d880cdf110e28d981...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:04.101387ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025175/publication.md
observed d89a4fbb1e960506fd0f4cd9f2a99ae3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:04.082600ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025175/publication.txt
observed 4bbdb036c086412903f8e5f0abbfe333...
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.