OpenTechnical

OT-2026-000099731

Publication integrity record

Two cup vacuum gripper, two zone face, pump fed, pressure sensor per zone, 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-2026-000099731) never changes.

Identity and time

Publication numberOT-2026-000099731 · never reused
Internal UUID01a0aea2-c977-707e-8796-512205399b5d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:39.138466Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000099731
StatusPUBLIC

Content hashes

Canonical textf3a4d068be22b82a1b29f2766ea852d2ffb7acb290985d8ca7617499259b553f
Markdown232fb04ed5c18696abc4ed95eb7383ca27ea9e1f0d05b7da549377ed50d9bb40
PDF
Publication page7d4077269c418bf49a4fb7a0692d90d156f14ca94919c82be0a89ca4cb808637
Manifesta53285c9efc5f6cd026e0ae0452e2c34dd5e18238eb4125d0eccbe3250c69a36

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
SignaturesSsQ9CQzablMxoMZtknCJ1qslfGsJn5dk0t32ETiUHQGTDEH8MVeiinnhASjNDVrJuLQaulg0K7ulXZpiB5OCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:29:45.107606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099731
observed 7d4077269c418bf49a4fb7a0692d90d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:45.092057ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099731/manifest.json
observed a53285c9efc5f6cd026e0ae0452e2c34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:45.076656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099731/publication.md
observed 232fb04ed5c18696abc4ed95eb7383ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:45.059511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099731/publication.txt
observed f3a4d068be22b82a1b29f2766ea852d2...
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.