OpenTechnical

OT-2026-000071616

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, vented 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-2026-000071616) never changes.

Identity and time

Publication numberOT-2026-000071616 · never reused
Internal UUID01a0ae92-1e90-7a5f-9000-6f6054035a28 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071616
StatusPUBLIC

Content hashes

Canonical textcb3506d2b450205f6c3529fdbceecf38abcf828fb8ea6b70f63e715dbd8c270f
Markdown8044d0cc256fc228e5fdc7e929bc7428e329721f0d51a6b6af3dad6e3a7bdb9f
PDF
Publication page1aec42ac0d767e4df70f5c24184aa5e9289c21fcdbabb96da09f7a7ee45289d4
Manifest4e7bbb70c25f2bec74135b8c98a21f96d9f42a8c592ad930e01b9d93b91e5e2e

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
Signature8s5kgkb3ho5OhXzkrLMeXsIU3u2ZrJQyAJtIkIcEGo9KbfKsujg7yszIp73rsmCb+LjJkLU6iMRj56RNNFEICQ==
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

2026-09-17T10:23:39.027964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071616
observed 1aec42ac0d767e4df70f5c24184aa5e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:39.009746ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071616/manifest.json
observed 4e7bbb70c25f2bec74135b8c98a21f96...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:38.992886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071616/publication.md
observed 8044d0cc256fc228e5fdc7e929bc7428...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:38.977482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071616/publication.txt
observed cb3506d2b450205f6c3529fdbceecf38...
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.