OpenTechnical

OT-2026-000020019

Publication integrity record

Foam pad vacuum gripper, four zone face, two stage ejector, pulsed blow-off before 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-2026-000020019) never changes.

Identity and time

Publication numberOT-2026-000020019 · never reused
Internal UUID01a0ae6f-1fb7-745f-8248-5f438c11eb6c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020019
StatusPUBLIC

Content hashes

Canonical textb8b399bc8571e6c15d663f5702d8f1f02c986bc44dc649154339f57e68dc1630
Markdownb084dc566c47c88d57ab1bf0c795fa310e2738eaca538b8a662df6c254576b63
PDF
Publication page9229a1b200a1f47603cceb201232050c40888dfd2396e37729501064433f7e60
Manifeste233a49be0a884903816a3cb14a971e3383f0e506feef0fd7049fdb936c8f63f

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
Signatureupl+pzBeFF+2bGRpRDh6PqoT4OQTl/pzLPu4JV0KILOr+ChaWisHwN3lEHR5fiOtTcZEUJOvxOb7RMC3Y+weAg==
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

2026-09-17T11:58:16.284797ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020019
observed 9229a1b200a1f47603cceb201232050c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:16.266405ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020019/manifest.json
observed e233a49be0a884903816a3cb14a971e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:16.248884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020019/publication.md
observed b084dc566c47c88d57ab1bf0c795fa31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:16.231217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020019/publication.txt
observed b8b399bc8571e6c15d663f5702d8f1f0...
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.