OpenTechnical

OT-2026-000075744

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, supply line pressure sensor, vented 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-2026-000075744) never changes.

Identity and time

Publication numberOT-2026-000075744 · never reused
Internal UUID01a0ae94-29fe-7164-9db8-b1fd216e4237 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075744
StatusPUBLIC

Content hashes

Canonical text499a52842fb2277851d3aa1acad5802a3a3989302f24ad19926636bee74c8b02
Markdowndbd7c1ed4e46202a54a98dcd9cdf121b21f719a8a2f7a305d1a45c0d63c44b84
PDF
Publication paged1ec744ce98d04bda4b927a2e05c5bb02d9d702488927ec99b491bea9bcf761f
Manifest1cceb32d8316b15b0c6ca01372d026fe0f9f863f9f6b73b7b16a91df58cc5016

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
Signature5E7ryweTM5wDGhppJOQkWo8ocL/Qoay7f+b6WM/iMYR5+/M3NramCaxm6n+kMHEfcIhd57hzefzIe1EDdf0oAg==
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

2026-09-17T10:14:05.971220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075744
observed d1ec744ce98d04bda4b927a2e05c5bb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:05.954026ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075744/manifest.json
observed 1cceb32d8316b15b0c6ca01372d026fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:05.811708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075744/publication.md
observed dbd7c1ed4e46202a54a98dcd9cdf121b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:05.547696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075744/publication.txt
observed 499a52842fb2277851d3aa1acad5802a...
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.