OpenTechnical

OT-2026-000020741

Publication integrity record

Four cup vacuum gripper, four outlet manifold, two stage ejector, manifold pressure sensor, pulsed blow-off before 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-2026-000020741) never changes.

Identity and time

Publication numberOT-2026-000020741 · never reused
Internal UUID01a0ae6f-65e2-766b-b009-7e822acf01f0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020741
StatusPUBLIC

Content hashes

Canonical texte253f69601f17f6cdd01dbf7064cfe8be16f01de880ba4ee2383d19148eaa2a1
Markdownc2bebf6da3c8b56c4a70c4a64e17307e8d977b3e48c36fc3a0e987e59376bebe
PDF
Publication page1a30dc93b5705108859abc402a0bafd14f0af6c0792b2f7d91a90e9a49fecf9c
Manifestd7e4f96f1bbec93d1dd12a08b95c5f0e20b2077c9efd3106c67892f02588b6f8

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
SignatureuP7TK+GxT4unzZ7bUnpgTvr2I7hyPZfX/wwEUZ7FERorIw4gITdiVAZtWuk5st+eCf+k3bJUGaNq/6J8cR+4Ag==
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

2026-09-17T11:55:48.394827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020741
observed 1a30dc93b5705108859abc402a0bafd1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:48.374816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020741/manifest.json
observed d7e4f96f1bbec93d1dd12a08b95c5f0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:48.357106ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020741/publication.md
observed c2bebf6da3c8b56c4a70c4a64e17307e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:48.336635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020741/publication.txt
observed e253f69601f17f6cdd01dbf7064cfe8b...
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.