OpenTechnical

OT-2026-000021443

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, plant vacuum 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-2026-000021443) never changes.

Identity and time

Publication numberOT-2026-000021443 · never reused
Internal UUID01a0ae6f-865d-7a2c-9999-0f10f281149c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021443
StatusPUBLIC

Content hashes

Canonical textc49f5aa8e4a039b134687f60762658b626b8de7b31a996c61dd3cc3c21147ef2
Markdown05914c21e3afd83d85a36f8528c43a1c3a6dc26934d2c485e602a1b064aaccd5
PDF
Publication pagee0c3df0a99217fe57537f84d201fcf4b08b3724ff6c945cc72d114c5fea17236
Manifestaba47fccecc23b37859ea0583a5e6751e32504353f31cb1491929f5fb7dba4db

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
SignatureMZox7ELJ85+F2z4AVUNrYp+Wen4oKVVg6MugfP7F+/OLoHaVeiDD8STVFpb4jnacO8vpfJ9P59V+z7D9z0p1Cw==
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

2026-09-17T11:55:14.858296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021443
observed e0c3df0a99217fe57537f84d201fcf4b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:14.839892ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021443/manifest.json
observed aba47fccecc23b37859ea0583a5e6751...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:14.821842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021443/publication.md
observed 05914c21e3afd83d85a36f8528c43a1c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:14.802182ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021443/publication.txt
observed c49f5aa8e4a039b134687f60762658b6...
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.