OpenTechnical

OT-2026-000018688

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, supply line 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-2026-000018688) never changes.

Identity and time

Publication numberOT-2026-000018688 · never reused
Internal UUID01a0ae6e-d520-72c3-85e1-adfacf94c2ff · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018688
StatusPUBLIC

Content hashes

Canonical textc38772726d2490742530d1f3ae9c45dbd82b67920786213b9439e896688194e8
Markdownb6675af91c0c4b3ed610561475a660ffcf2196a9cd53816d4f31f86fd8bd7ccd
PDF
Publication pageab9dd2da26db3462cbe0a2e336e48b191142c5b495bcc2db068fe47240219301
Manifestc3bd73412116f26cae0634b22afb4d4714dc8006bec922c081eb56b1c4a3b244

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
SignatureK5wlWnXUVKZWugnNSX6jUh9GJwJ9d4iKakXHuBIYh5FBq1CW3/M5kpkBfmSqqZvr0zGUSbavwLUfVZYQOqBHCg==
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

2026-09-17T11:59:17.272487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018688
observed ab9dd2da26db3462cbe0a2e336e48b19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:17.254282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018688/manifest.json
observed c3bd73412116f26cae0634b22afb4d47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:17.237763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018688/publication.md
observed b6675af91c0c4b3ed610561475a660ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:17.218929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018688/publication.txt
observed c38772726d2490742530d1f3ae9c45db...
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.