OpenTechnical

OT-2026-000005069

Publication integrity record

Porous face vacuum gripper, four zone face, three stage ejector, pressure verified at each zone

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-2026-000005069) never changes.

Identity and time

Publication numberOT-2026-000005069 · never reused
Internal UUID01a0a92c-de63-756c-9c1d-f8eaaea88617 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:44:45.158788Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005069
StatusPUBLIC

Content hashes

Canonical text920e3c07f071826add6e0017b6f8f78e0e90bbcfaae6469f73ca9623cd91cd20
Markdown0f250beff64e93e6a6b4fb7a2528baea2c89fe6cc56ea4ddafdb9b02b13f6f21
PDF
Publication page951f35da77c9bd61f24c35c7aed8a7f4077a7ce2377fc100b8a60e9e151a1f42
Manifestf943eb11e86fe61f0c25ef22ec41861e69a0dcdb99cf7aa8bd22c859d5a962c0

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
SignatureP1yTMVzmwxp+OC4sGfGTcAF9uiWawcADDXQjM+fx5IvSUYL+Ke5223Y43idq7UUSJBljsmkipuSDA+WLa7OTDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:50:18.921383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005069
observed 951f35da77c9bd61f24c35c7aed8a7f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:18.908891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005069/manifest.json
observed f943eb11e86fe61f0c25ef22ec41861e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:18.896711ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005069/publication.md
observed 0f250beff64e93e6a6b4fb7a2528baea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:18.881621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005069/publication.txt
observed 920e3c07f071826add6e0017b6f8f78e...
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.