OpenTechnical

OT-2026-000028026

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000028026) never changes.

Identity and time

Publication numberOT-2026-000028026 · never reused
Internal UUID01a0ae72-a51f-70d0-9330-11e7c66e44d1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028026
StatusPUBLIC

Content hashes

Canonical text3302330a32d61f7e8c2b7b712cb8ad7ad59676a7ff69e511c2c850ff00484b82
Markdownd5888c26ab92b62b017aa46edfcb2c35423fa211858ef2f767178c791e924069
PDF
Publication page98f88c2073489e20288b9e7804c0b61ab9afcdcd5584b78ab84f199e4572013e
Manifest53ec6450b68b46a540a7d3fc2ca3257da68c3531ae6e8c0dc8d34e0bed9819ff

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
Signature1HIy4ym5BS6EYFHmRRU1siKIIsQt6DeI4YJLnf1xsuIWNIGWza8+NZFM19o1kIO9OUTBFHGAbeOjKqrOn8LVDA==
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

2026-09-17T11:42:20.850004ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028026
observed 98f88c2073489e20288b9e7804c0b61a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:20.830652ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028026/manifest.json
observed 53ec6450b68b46a540a7d3fc2ca3257d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:20.808569ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028026/publication.md
observed d5888c26ab92b62b017aa46edfcb2c35...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:20.787088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028026/publication.txt
observed 3302330a32d61f7e8c2b7b712cb8ad7a...
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.