OpenTechnical

OT-2026-000013030

Publication integrity record

Foam pad vacuum gripper, common isolation valve, 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-2026-000013030) never changes.

Identity and time

Publication numberOT-2026-000013030 · never reused
Internal UUID01a0ae6d-5564-7f78-88c5-43c01c2a6119 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013030
StatusPUBLIC

Content hashes

Canonical text9dd09fe68da2ed45c7fd02c208455fb634fc07313774323591d2159114b490a7
Markdown5e1ce3054a9f3c4be067283c942932f77b5c8803545324bf4182d4fa091286e7
PDF
Publication pagea6ea5689e67f676e5b7884aff73eef25776d8ab5085c287c9cb7ca00e8ec831d
Manifestd68b393a9c5fbda294b5b69acde24ded6dba67f15256dac7892c5d04fab78140

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
SignatureRyX5yVVEHZokJ6tcTiFyJv06K3+WLNFpsp3335q/cXf26cyaOB2xLTYSSNSHTtdpoLd/1QGtcAHV2bIMcTYTBQ==
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

2026-09-17T12:10:51.502367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013030
observed a6ea5689e67f676e5b7884aff73eef25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:51.482014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013030/manifest.json
observed d68b393a9c5fbda294b5b69acde24ded...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:51.463586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013030/publication.md
observed 5e1ce3054a9f3c4be067283c942932f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:51.444587ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013030/publication.txt
observed 9dd09fe68da2ed45c7fd02c208455fb6...
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.