OpenTechnical

OT-2026-000081398

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000081398) never changes.

Identity and time

Publication numberOT-2026-000081398 · never reused
Internal UUID01a0ae96-f375-7b33-a8ad-092301bfde2a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081398
StatusPUBLIC

Content hashes

Canonical text37855aac96b56ab417edb04cb5d2895124ba77bfd7533c32c03a1e738b2dc1ec
Markdownf42bc3619b8a41c45a67bb63e2c62970d16a4cc416c87c396d0f302b8d28d4de
PDF
Publication page19a6c36ea162fcdf553a55e969d304071cf553d476a5c1feb705867607090aeb
Manifest9bbcc00219ad9c679015b0d7b265af350a74105536c8c407e78e949d523cea27

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
Signatures05QM3sXLIViT4G++ppTSUczQn7lmXi3jH81/+NPewEULZg1FTFuqAznVs8HYedWNDO4x1O/mFcD3hnPSgBEDQ==
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

2026-09-17T10:01:32.520938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081398
observed 19a6c36ea162fcdf553a55e969d30407...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:32.499945ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081398/manifest.json
observed 9bbcc00219ad9c679015b0d7b265af35...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:32.478370ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081398/publication.md
observed f42bc3619b8a41c45a67bb63e2c62970...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:32.459492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081398/publication.txt
observed 37855aac96b56ab417edb04cb5d28951...
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.