OpenTechnical

OT-2026-000068020

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, pump fed, supply line pressure sensor, vented after 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-2026-000068020) never changes.

Identity and time

Publication numberOT-2026-000068020 · never reused
Internal UUID01a0ae8f-c4fe-7d35-95b1-1c8337773c89 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000068020
StatusPUBLIC

Content hashes

Canonical textbe5ccfcd6d995b42bff834f5e3bbd2106315cb060685d11a45c896ad97d65853
Markdown7be6ba8ca55dd6da2111aa584ffe20ea9f303342a2984385fe7bf44290f3ea5f
PDF
Publication page04bd04511b0b77a0d41347f330b57081c44e6afb681b77c0c24f51bdf81c98b0
Manifestfd5c2e1acdfa1938fb3c94b0c8d2e11ec9958976b1062c25bc9810cae6be8602

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
SignatureD3ALSOFihKRKMkRCA7gNCFeqDeXQz6xp6Jg93NSl835vWR7w6xnnfyrq8go6zxht283c8LqjOLXxyLHfh0J4CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:30:34.764737ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068020
observed 04bd04511b0b77a0d41347f330b57081...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:34.749560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068020/manifest.json
observed fd5c2e1acdfa1938fb3c94b0c8d2e11e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:34.729518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068020/publication.md
observed 7be6ba8ca55dd6da2111aa584ffe20ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:34.712622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068020/publication.txt
observed be5ccfcd6d995b42bff834f5e3bbd210...
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.