OpenTechnical

OT-2026-000054520

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, single stage ejector, manifold pressure sensor, pulsed blow-off after 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-2026-000054520) never changes.

Identity and time

Publication numberOT-2026-000054520 · never reused
Internal UUID01a0ae86-1283-79c4-bb92-c3622cbcc5fd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:17.489937Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000054520
StatusPUBLIC

Content hashes

Canonical textdcb6796a77fa094002675f5693d966d06f50387079129d135baea047c068fdee
Markdownfe5d9a34fe44a3e7f30de98d5540ead622a968481d5bca47f3082697228bb50f
PDF
Publication pagea2c565fe3e5616bd059b503b691cd7a0d9a216e8094a49cbfb182f1deab8679e
Manifest8d97dd4b13048357742d82c7bf4c9c90ce9afcdebbba3d8d62566f8a8cfba626

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
SignatureVaXlT9T1rIk/8eaZTW9wTkWtu7KN22LbCZs2SpuX4euKfuRudo6Zn7Kuk2+BjtvMnekLwmugOTr6mtsppUEYBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T08:44:48.243936ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054520
observed a2c565fe3e5616bd059b503b691cd7a0...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:44:47.991071ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054520/manifest.json
observed 8d97dd4b13048357742d82c7bf4c9c90...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:44:47.725138ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054520/publication.md
observed fe5d9a34fe44a3e7f30de98d5540ead6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:44:47.311308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054520/publication.txt
observed dcb6796a77fa094002675f5693d966d0...
fetched by grabo-systems from 34.44.131.203, 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.