OpenTechnical

OT-2026-000006612

Publication integrity record

Vacuum cup gripper, two stage ejector, pressure verified at each zone, vented after set down

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-2026-000006612) never changes.

Identity and time

Publication numberOT-2026-000006612 · never reused
Internal UUID01a0a961-553e-7e4a-b9cc-7618cd88e334 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:42:03.457066Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006612
StatusPUBLIC

Content hashes

Canonical text7c21b51a201bc405771b504e7f75e361a60764a64e2a8c0ee68ac4b8d65d9484
Markdown8e61fef8e4785ad5bb784774003db93a6d916217f7c8fbac300627979cae31b7
PDF
Publication page177cfcb724544e5c9fca722e1792ada5c3d3fddc5a05741bc5f89ada86b27bdf
Manifest2eab28c421201f10b8728902bb0ff5d0861d2c211abbc1a505f820d2dba10308

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
SignatureiAoHEk1/cxdEs+5HMb2Cu6d/iHlRVvn0LW4j9NQ29tQowdS0BymDRipP+jbSySxOjtdUZGELGx1HNssYMwTSAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:50:25.387072ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006612
observed 177cfcb724544e5c9fca722e1792ada5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:25.254757ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006612/manifest.json
observed 2eab28c421201f10b8728902bb0ff5d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:25.241408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006612/publication.md
observed 8e61fef8e4785ad5bb784774003db93a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:25.227251ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006612/publication.txt
observed 7c21b51a201bc405771b504e7f75e361...
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.