OpenTechnical

OT-2026-000020711

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, pump fed, pulsed 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-2026-000020711) never changes.

Identity and time

Publication numberOT-2026-000020711 · never reused
Internal UUID01a0ae6f-65e2-743c-b341-02f59b6d73d7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020711
StatusPUBLIC

Content hashes

Canonical text07c30dfdb094a723d011279aac284c3d7f10a831de5d855d86499954c91de3bd
Markdowne850368358db687998086e13a36e338504944516002f13e6e0dc2eea818b60cf
PDF
Publication page251c1507d3976e0cd821c3337fb17dd5f46f6472c6f2a60565c1dec2f9027a9b
Manifest0b241f17b28e63e57192698d1042e84383ffa37ba3adaa332d0bd5059888b1bc

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
SignatureLuWC2POzsBUtv4afAflYjX/fDDTxiEGvn04YMqM+c/KecvkJFhHKvTKvCj6o6eK2J+Whc1MjIu7bS1ejfTM1CA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:55:45.775091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020711
observed 251c1507d3976e0cd821c3337fb17dd5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:45.758824ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020711/manifest.json
observed 0b241f17b28e63e57192698d1042e843...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:45.743033ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020711/publication.md
observed e850368358db687998086e13a36e3385...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:45.724789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020711/publication.txt
observed 07c30dfdb094a723d011279aac284c3d...
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.