OpenTechnical

OT-2026-000027688

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, sustained 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-2026-000027688) never changes.

Identity and time

Publication numberOT-2026-000027688 · never reused
Internal UUID01a0ae72-699a-7d14-bc49-a84d5123d23d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027688
StatusPUBLIC

Content hashes

Canonical text7743f93cf51fdeee1163d3ccc90402c71517ba9b90109e18310540996f689985
Markdown74cd64b1d182b673b23f8026e9baccd69c3204d98046bff3ec8f10860cbfc1ac
PDF
Publication pagee5582a1ab6026c8f5e5f1cf7a40b7b79cc43795c193ccce6d05ff1862a55740e
Manifestfe410972cfc97313a09911eb0e57117ae9cdaf73459f1389e4cfe0c8bc318d9f

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
SignaturehlOPJr7f1T0d+DhVfltpixcTgjeqQn7GQE2+lAcySg3uH63+8eCIN8ODY1gJGx3LkneefXcsEWnJf9yMpiMsAA==
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

2026-09-17T11:43:13.727618ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027688
observed e5582a1ab6026c8f5e5f1cf7a40b7b79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:13.707654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027688/manifest.json
observed fe410972cfc97313a09911eb0e57117a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:13.691257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027688/publication.md
observed 74cd64b1d182b673b23f8026e9baccd6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:13.675163ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027688/publication.txt
observed 7743f93cf51fdeee1163d3ccc90402c7...
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.