OpenTechnical

OT-2026-000075679

Publication integrity record

Foam pad vacuum gripper, two zone face, plant vacuum fed, pressure sensor per zone, 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-2026-000075679) never changes.

Identity and time

Publication numberOT-2026-000075679 · never reused
Internal UUID01a0ae94-29fd-7e2f-a067-65b7fa4cb1b2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075679
StatusPUBLIC

Content hashes

Canonical text262554a2dc0d81d5b55e55ea7a12905ada7029ea24fae1f5de494af0303ee853
Markdown2cbda06e1f1e1b78fea47cdb6b13fa43f364188969d787cb41473c1d3bb96d10
PDF
Publication pageeb574d9c69f1860ac09bf78184d889a961a50adc82cd030abbfa60c2b48a50ac
Manifest9e2795eb82ef0c2c61bfea61ba3a9c91dec62671162520e29b68c34fd7b20efc

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
SignatureDbyBOX8Aw8blrQR32j/ohu1wlTUAEhZ7FtN3aZElCCDBySwmYHcua37R6/RrcyORNRAwun3PLsJSfosi6jUZDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:13:50.468719ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075679
observed eb574d9c69f1860ac09bf78184d889a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:50.446897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075679/manifest.json
observed 9e2795eb82ef0c2c61bfea61ba3a9c91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:50.305614ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075679/publication.md
observed 2cbda06e1f1e1b78fea47cdb6b13fa43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:50.282991ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075679/publication.txt
observed 262554a2dc0d81d5b55e55ea7a12905a...
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.