OpenTechnical

OT-2026-000089155

Publication integrity record

Foam pad vacuum gripper, three zone face, six outlet manifold, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000089155) never changes.

Identity and time

Publication numberOT-2026-000089155 · never reused
Internal UUID01a0ae9b-db00-70ae-8c69-ee65477b6f3a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089155
StatusPUBLIC

Content hashes

Canonical text07766b728301d18b7c3be26f6580bc6e6c6693eaa8d0a82148570db261dc2d96
Markdown5597a45742a529770169be3676e9238ecd8cc2a712960b2c1e3aa17579a44be4
PDF
Publication page6dffced7aa69d199f1cdcd8f34a1fd01a836cd20971c7ac6c9f3f5adb9437626
Manifest09ae83f50b23873a0cc9da7881d19a054f02be8bf5fe0717fbca467f1602d04b

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
SignatureV8a5QzuX/K5EjdWSmSPPtOH13EBhfs++jupMX3ct9/1Xxzgc5+chJkQnkLnIPRkq5iI8ip94tsVN0d3MoaCGCg==
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

2026-09-17T09:47:04.768450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089155
observed 6dffced7aa69d199f1cdcd8f34a1fd01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:04.749752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089155/manifest.json
observed 09ae83f50b23873a0cc9da7881d19a05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:04.730916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089155/publication.md
observed 5597a45742a529770169be3676e9238e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:04.711980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089155/publication.txt
observed 07766b728301d18b7c3be26f6580bc6e...
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.