OpenTechnical

OT-2026-000067474

Publication integrity record

Foam pad vacuum gripper, plant vacuum 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-2026-000067474) never changes.

Identity and time

Publication numberOT-2026-000067474 · never reused
Internal UUID01a0ae8f-6bd9-71f1-8778-9245581e0c93 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067474
StatusPUBLIC

Content hashes

Canonical text1a1d0eba19ce4f969064ac8a494d583f8a18dc35b1933d9de51bb541a5c4706a
Markdowned239b32a9a0ea60b2e6443441aa6115492e76efe64da8e8b284dbc2ff90efc2
PDF
Publication page1937cbfce30559d8e7e33127b03555f32a7669cf1190fed518e84f7e8374279f
Manifestf88d3048ed5c092d5cb7bf786b974a4723a1769206f5ccf2fc4c37056d0686a0

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
SignatureQn2ExN/n2Jjh//vQv/AVTnyWUA9RyxpZSJTO/zPsgUFQ7bGXC9ZlSgxUiug1TKomXR7qcE8zcb68i0g6B8+dBg==
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

2026-09-17T10:31:41.028557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067474
observed 1937cbfce30559d8e7e33127b03555f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:41.010972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067474/manifest.json
observed f88d3048ed5c092d5cb7bf786b974a47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:40.994814ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067474/publication.md
observed ed239b32a9a0ea60b2e6443441aa6115...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:40.977928ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067474/publication.txt
observed 1a1d0eba19ce4f969064ac8a494d583f...
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.