OpenTechnical

OT-2026-000095220

Publication integrity record

Foam pad vacuum gripper, four zone face, plant vacuum fed, pressure sensor per zone, 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-2026-000095220) never changes.

Identity and time

Publication numberOT-2026-000095220 · never reused
Internal UUID01a0ae9f-8f70-7019-a743-ccf224fa84df · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:08:07.681434Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000095220
StatusPUBLIC

Content hashes

Canonical text27d74fefef418576ca42c83a23b85d82b6c1e90811e1a7298c942ed0ae93ef46
Markdownb04341ab943bc64ea42611e0408dc366c8d50547bf547bc7a12d1b5967e2cdd5
PDF
Publication page71428eff5a133261c6baa08c4c29343c9578db5ec61e57bf447dc8ed329a7810
Manifest85157c60a83d3343e6e312cd2cbbdfb70aa48250984da0aa58e9ddff56857f53

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
SignaturejSZKIgbxQ9yRzay1AbdeeWY/UVdyycxJKeldFKuk2j3ewWZN9mGyo/Vms4mayB1VQmfhNhmbOosj8MGcwMx4DQ==
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

2026-09-17T09:36:32.473133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000095220
observed 71428eff5a133261c6baa08c4c29343c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:36:32.454897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000095220/manifest.json
observed 85157c60a83d3343e6e312cd2cbbdfb7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:36:32.437716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000095220/publication.md
observed b04341ab943bc64ea42611e0408dc366...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:36:32.419608ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000095220/publication.txt
observed 27d74fefef418576ca42c83a23b85d82...
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.