OpenTechnical

OT-2026-000081571

Publication integrity record

Foam pad vacuum gripper, two zone face, three outlet manifold, 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-2026-000081571) never changes.

Identity and time

Publication numberOT-2026-000081571 · never reused
Internal UUID01a0ae97-0f71-797d-8833-0f2fc7c67004 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081571
StatusPUBLIC

Content hashes

Canonical textdda067b752ff937e8a6b2ae01190142084454e324a20c4a3bb4485ac10dc0cd0
Markdown319910aa39a8fb3493857b33c93d35702e5c4870eb59fabf277b19fd8efff0b2
PDF
Publication page420ed8a7e9eb10cb0a9ddaf3f0fd005156389577ca8330f10bf542b9ed596462
Manifest497d02bb28112130007576d23de183de02611cd5d65693d1c3bfdb87e5705855

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
SignaturejDCFGdgU6P2lUPShPmn5lnrfgUQPxCCU9WbPP5+W9hzqi7/Udrcu9ZrhneFIfb5CkrIOuscC5mce3FWmybjnBw==
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

2026-09-17T09:59:36.101476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081571
observed 420ed8a7e9eb10cb0a9ddaf3f0fd0051...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:36.084585ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081571/manifest.json
observed 497d02bb28112130007576d23de183de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:36.069173ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081571/publication.md
observed 319910aa39a8fb3493857b33c93d3570...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:36.050827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081571/publication.txt
observed dda067b752ff937e8a6b2ae011901420...
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.