OpenTechnical

OT-2026-000045283

Publication integrity record

Two bellows cup vacuum gripper, two zone face, pump fed, pressure sensor per zone, pulsed blow-off before set-down

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-2026-000045283) never changes.

Identity and time

Publication numberOT-2026-000045283 · never reused
Internal UUID01a0ae7c-f76a-76cd-9db0-7e72415ceab1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:30:20.545172Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000045283
StatusPUBLIC

Content hashes

Canonical textabfff087a16fea3c52cc831b4796d2d50c78f8fea891ee3755631fe976bd4604
Markdown5b6b6b6a8ff4ee0196098087c8b405fe670421180cd2cfbc738fe485df86fb06
PDF
Publication page8501db4b6317be7d8a072df73d725eb6245a977b96b0d3af512beeba11333006
Manifest842aa626aa9684b6fd0105ab9b24cd42fb5364d1f809a1af645237083374fad6

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
SignatureYYcfo5PXToESsvlh1LeERa4+VVMyYMcE8H7lPvdLqYU6oc8bs09cqPcf0/ijoWB2uLuW6jycVPeWRH9gt4TgDw==
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

2026-09-17T11:10:29.909432ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045283
observed 8501db4b6317be7d8a072df73d725eb6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:29.890339ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045283/manifest.json
observed 842aa626aa9684b6fd0105ab9b24cd42...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:29.871946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045283/publication.md
observed 5b6b6b6a8ff4ee0196098087c8b405fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:29.853269ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045283/publication.txt
observed abfff087a16fea3c52cc831b4796d2d5...
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.