OpenTechnical

OT-2026-000085957

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, pump fed, 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-2026-000085957) never changes.

Identity and time

Publication numberOT-2026-000085957 · never reused
Internal UUID01a0ae99-e82a-76ed-a0c8-158e34cc9627 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:57.178584Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000085957
StatusPUBLIC

Content hashes

Canonical text61b9967f61087aaaab9bd4a1776e2d052e0ef0370449aa0de6225381c479c8b2
Markdownf5ce7dc1666b9ec6feffb5dc84f2b9a2d9ec55bd652a5bbf7d8308f152e0a42d
PDF
Publication pagef21e35804dff0381305ce2bc9badef28c01e8210a22559a3c4e967eba60b5252
Manifest9e1697cb2e50ce7412a08c593f8dd2db37cc38ed6d65c0cf09b4381737f49330

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
SignatureEiF3gClxa56PEGIRErMa9nipfkxCS3xO1wBAQ0whanW2WzT9ruR9zrlI9vH/XG2G1IrEtI1qqlaKaGVVFqqqDg==
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

2026-09-17T09:52:55.297201ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085957
observed f21e35804dff0381305ce2bc9badef28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:55.277451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085957/manifest.json
observed 9e1697cb2e50ce7412a08c593f8dd2db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:55.259842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085957/publication.md
observed f5ce7dc1666b9ec6feffb5dc84f2b9a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:55.238739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085957/publication.txt
observed 61b9967f61087aaaab9bd4a1776e2d05...
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.