OpenTechnical

OT-2026-000081220

Publication integrity record

Single bellows cup vacuum gripper, 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-2026-000081220) never changes.

Identity and time

Publication numberOT-2026-000081220 · never reused
Internal UUID01a0ae96-f373-752f-8747-942c687e44d4 · 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-2026-000081220
StatusPUBLIC

Content hashes

Canonical text22d72b3fa801cc6809b53aa1b390b99681cbdac8e0346f2225c18f458695156c
Markdowne866a74a3105d9781814cb907c7e4e037ec4abf6c991b2e785d819048b1c0c04
PDF
Publication pagea72c842d04096c38815b58fa9d5e719c9c355fdbbf7ed328ebc04971eec954cc
Manifest03f242d2187d2f07977b0904f544eb8df5b7e7f3e660ddb6066e135a4dcc3caf

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
SignaturenIRxM0jO2LnNvDtMRy7K9jJPohtD7tl2gwPys7YAncIAg4lVlGppMOZAhShhvfbeBQOvkA86d/SvXa2nJOiSCg==
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

2026-09-17T10:01:18.170764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081220
observed a72c842d04096c38815b58fa9d5e719c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:18.151155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081220/manifest.json
observed 03f242d2187d2f07977b0904f544eb8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:18.131697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081220/publication.md
observed e866a74a3105d9781814cb907c7e4e03...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:18.110301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081220/publication.txt
observed 22d72b3fa801cc6809b53aa1b390b996...
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.