OpenTechnical

OT-2026-000029253

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, supply line pressure sensor, 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-2026-000029253) never changes.

Identity and time

Publication numberOT-2026-000029253 · never reused
Internal UUID01a0ae73-2aa1-773a-96fb-6fe941db5cac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029253
StatusPUBLIC

Content hashes

Canonical text6e347286350e00f58d50a745020e4e3174fa2802713da4fd794aa7d17e7eb6ff
Markdown890eecfaf43b65857fb2fafec046e4545aa56f42ecac5ca571ed257f49f04c5a
PDF
Publication page6532aebfa0a776a734138869cdb6c646419ec0d277c33c8f1e35b0c3146002e5
Manifest8de1b954224ecabbeafd0f7285e8e20f4a98f1ebd98d0120a7952c36269049c3

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
SignatureiOvpkWzEE/InqP/bKljx6ymQJ2HEkjTAcHzlJnxllMY/Odl+w24bEuMDRIqYJ7CKDgh6+GyLX2GDfkSpWDMZCQ==
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

2026-09-17T11:39:52.929271ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029253
observed 6532aebfa0a776a734138869cdb6c646...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:52.912287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029253/manifest.json
observed 8de1b954224ecabbeafd0f7285e8e20f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:52.894791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029253/publication.md
observed 890eecfaf43b65857fb2fafec046e454...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:52.875975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029253/publication.txt
observed 6e347286350e00f58d50a745020e4e31...
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.