OpenTechnical

OT-2026-000027907

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, single 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-2026-000027907) never changes.

Identity and time

Publication numberOT-2026-000027907 · never reused
Internal UUID01a0ae72-a4a5-7d14-bbfb-c1cd22d0ec2e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027907
StatusPUBLIC

Content hashes

Canonical textf3c252226f2abe1ec9af81497f74df9a2a6219d404592b634c62dd2b609abbcf
Markdown581d8584780f57668c3efe90bf9af836e7c0be338cbcea93a3c8e730a80e2f4a
PDF
Publication page57e172e276ad0296aea5906d0f687c0f9bfbf91bba59936d7ba534f29028b732
Manifestdd7a442457f8580d44e6d3286bd5b9a3aea93d7ad7924d89e90a437889b54953

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
Signature28Exhds5QRYUqsnC7dbM7QuVvGs05mVdFULIqISAj3eTPOLftCvJpZ388A2XEYlT3OZ9HRYISjbPMU2QFBcYCA==
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

2026-09-17T11:42:04.581593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027907
observed 57e172e276ad0296aea5906d0f687c0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:04.563213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027907/manifest.json
observed dd7a442457f8580d44e6d3286bd5b9a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:04.544623ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027907/publication.md
observed 581d8584780f57668c3efe90bf9af836...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:04.525404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027907/publication.txt
observed f3c252226f2abe1ec9af81497f74df9a...
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.