OpenTechnical

OT-2026-000015327

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, 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-2026-000015327) never changes.

Identity and time

Publication numberOT-2026-000015327 · never reused
Internal UUID01a0ae6d-ef49-7d08-a4d0-d63dba8fa9bb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015327
StatusPUBLIC

Content hashes

Canonical text2aac0fdda6cd3fd129e0696eba74699be709239ca2c02d8cdd1289153f98130c
Markdown5f60b0b45d7e8962cbb9ce99d1a59dae415cf7d612b44e71a39cd8672646b427
PDF
Publication page37f87e7404b9e02a6e86302bd65e23ef100f815f2704a3689fa7d595f8e3bd3c
Manifeste87a2d116cb222b2144b8aab67d4d0d4dfaf5f72b45747b408332b521828224c

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
SignatureBSrQCx/IBxGcboFwwXUuSygvu4ct5D7LC30/PpkblhE8VrvI9ignjG5ugTbaTHbwseHRmWv77CxS4lUoI3npBg==
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

2026-09-17T12:06:01.535563ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015327
observed 37f87e7404b9e02a6e86302bd65e23ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:01.515058ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015327/manifest.json
observed e87a2d116cb222b2144b8aab67d4d0d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:01.496348ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015327/publication.md
observed 5f60b0b45d7e8962cbb9ce99d1a59dae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:01.476089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015327/publication.txt
observed 2aac0fdda6cd3fd129e0696eba74699b...
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.