OpenTechnical

OT-2026-000013399

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, two 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-2026-000013399) never changes.

Identity and time

Publication numberOT-2026-000013399 · never reused
Internal UUID01a0ae6d-6fca-75bc-ba00-71061a22fb7d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013399
StatusPUBLIC

Content hashes

Canonical text7eb8de540bd9077001dd17345a177c4dc7c0aad97e1ea6ef450211032778c973
Markdown2a31229f146c43840e6e0ceb6b8b10b99066b6bdd75f3c3addd4d13f2dc44781
PDF
Publication pageec701a80f1b22008d6ff8466b80a2c78e2812f9477ee06041b7db526c8c14b59
Manifest7559c2828d3087d20912041a0ad5fff4a35e8752f12cb2c3829a0fb38ad991ad

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
SignaturePR+GAA7sLXPwFNYuMJvfK9xbcIZZ10Z7cEwlBnn6L3XPclqgP0aDs6Onjg49LdVKxXI7PPxh4kIu630PPuMfAA==
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

2026-09-17T12:09:52.422476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013399
observed ec701a80f1b22008d6ff8466b80a2c78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:52.402934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013399/manifest.json
observed 7559c2828d3087d20912041a0ad5fff4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:52.382989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013399/publication.md
observed 2a31229f146c43840e6e0ceb6b8b10b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:52.364253ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013399/publication.txt
observed 7eb8de540bd9077001dd17345a177c4d...
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.