OpenTechnical

OT-2026-000081838

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented after 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-2026-000081838) never changes.

Identity and time

Publication numberOT-2026-000081838 · never reused
Internal UUID01a0ae97-0f75-7a65-a6d7-1c1461e2290f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081838
StatusPUBLIC

Content hashes

Canonical text3c9d7870fdfb80f6c6453eb62926ee6a25a50e2074f229d5942d44fd393cf5af
Markdown87a032a3c1c8150d0cabff8561683901999ca515fbabbe7c471af6e1d1022b8c
PDF
Publication pagef7b1303b39f8a088972f75917dbb8f0ff15df8d13a497fb20d66a02881ceeed8
Manifeste261f7c0a708c1e5280c2ca90c9cdd315931d77acb7ca930168e0a83be2fecc0

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
SignatureLD/XS0b+puXW2HTNjuZbM9cKiNHTFghRiaQL/UkCWPLiRn3hh3d4lrEWIf5Hxuh0JI+k13rJ43nqd/RIfiiiAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:59:57.030926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081838
observed f7b1303b39f8a088972f75917dbb8f0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:57.012333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081838/manifest.json
observed e261f7c0a708c1e5280c2ca90c9cdd31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:56.994457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081838/publication.md
observed 87a032a3c1c8150d0cabff8561683901...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:56.977313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081838/publication.txt
observed 3c9d7870fdfb80f6c6453eb62926ee6a...
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.