OpenTechnical

OT-2026-000104538

Publication integrity record

Foam pad vacuum gripper, two zone face, pump fed, pressure sensor per zone, pulsed blow-off 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-2026-000104538) never changes.

Identity and time

Publication numberOT-2026-000104538 · never reused
Internal UUID01a0aea7-239f-75cd-861f-4d12a7753c2a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:16:24.420933Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104538
StatusPUBLIC

Content hashes

Canonical text65be9adacccba7bafca188d28a4a03623d9d8a0606705016c0f6eb9c8fd1238b
Markdown137e9c726f25bb8bae2a16cf6223018eb7e63ff6b8c7307474fd4e7b9309e92b
PDF
Publication pagee577aba454f7454047aeaa4533431d9f57607b99ff080991c2906db04fd9d6db
Manifestc70a40488abe8a09fd97444cc178197ca57c67bb4f85f81593d393f374b6a645

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
Signature3BGhfYC8TXh5mPuQxrPtrPyFF9yT/hjiQC9uoqo2pYF/UQsMCJX+o3eqshSETim3B9XJzARTdytjs1y+cJTDBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:20:03.396285ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104538
observed e577aba454f7454047aeaa4533431d9f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:03.379657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104538/manifest.json
observed c70a40488abe8a09fd97444cc178197c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:03.362848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104538/publication.md
observed 137e9c726f25bb8bae2a16cf6223018e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:03.342548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104538/publication.txt
observed 65be9adacccba7bafca188d28a4a0362...
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.