OpenTechnical

OT-2026-000099727

Publication integrity record

Foam pad vacuum gripper, two zone face, pump 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-2026-000099727) never changes.

Identity and time

Publication numberOT-2026-000099727 · never reused
Internal UUID01a0aea2-c977-79fd-aca3-1021f4f8dd0e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:39.138466Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000099727
StatusPUBLIC

Content hashes

Canonical text5dcc8efb50e105c192add56fbaa637025f3cd2c11ad8f1fe0fc688f59454f25c
Markdown5929b772c73108769cf107916226b09425c6c09750ef83c80491987fe361e6f7
PDF
Publication page369cfc864d70f69c679248a79cfa1ea866414b0eab24c303c7eb0499a331ed24
Manifest2c5c53e640a119b505f85099e203a824df6263d903d7f0f7b6bd00eb5dc25160

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
SignatureuerQFS54GxMqvaoB55BkjZfQKPW/eYMgdbck3SF8+vwzv3DzOFZmYoeDWqsduUgpsnfJPQon6RUKjBTPMwa9CA==
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

2026-09-17T09:29:44.904316ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099727
observed 369cfc864d70f69c679248a79cfa1ea8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.887983ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099727/manifest.json
observed 2c5c53e640a119b505f85099e203a824...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.870035ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099727/publication.md
observed 5929b772c73108769cf107916226b094...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.852482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099727/publication.txt
observed 5dcc8efb50e105c192add56fbaa63702...
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.