OpenTechnical

OT-2026-000028273

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump fed, manifold pressure sensor, sustained 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-2026-000028273) never changes.

Identity and time

Publication numberOT-2026-000028273 · never reused
Internal UUID01a0ae72-e2f4-75be-b77c-f6b23b985b6c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028273
StatusPUBLIC

Content hashes

Canonical text0c859d990189ccd1ffa477d90855045695f9686e823d3bd51aa97c2c54119395
Markdownf0e809dde34d3987b9dd0580240c662a139addcf662a5ac29989f34424b3ae33
PDF
Publication page9273a3085296b54915e39b331f97bb0e336d1d26d742e565811deedab9f6dafc
Manifestfac77e7919daeaf512833e5b8b2d7cbfde0b477544c3f63d7fb6005315664ad3

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
SignatureLHDlsHZRSB/t4/a3UWyrF8GYiujw3DunJ3qLlOESNk9wtsgl5qsOJC7Zw/zyPWV4DWyClPqDy5riaU6b2gTTAA==
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

2026-09-17T11:40:08.974661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028273
observed 9273a3085296b54915e39b331f97bb0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:08.956311ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028273/manifest.json
observed fac77e7919daeaf512833e5b8b2d7cbf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:08.939358ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028273/publication.md
observed f0e809dde34d3987b9dd0580240c662a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:08.919928ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028273/publication.txt
observed 0c859d990189ccd1ffa477d908550456...
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.