OpenTechnical

OT-2026-000028938

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, three stage ejector, manifold pressure sensor, sustained 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-2026-000028938) never changes.

Identity and time

Publication numberOT-2026-000028938 · never reused
Internal UUID01a0ae73-2a9d-73b1-9258-bf250a7126f6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028938
StatusPUBLIC

Content hashes

Canonical textfabe4f63d7e29d327736ce113d163f55d631bc47725dccddb17644c1d058f793
Markdown5fdae238b81cb94c4cfc190ebe1809a55fc0837f3701e282c1a9e9799d0eb1d8
PDF
Publication page971e2cf3dfff4178fa9a547e92708ec5a1c74d417b2a18343ef62595559992ca
Manifestde07cebe63ff568191196bcfb50372b5a56ebd20244d67671d1528c76ea7f5b3

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
Signature3erL59VODeWUpUrKz5gsWQMmIInZrcSSawLURX6jeTcoNpbqeTrqNtf8dTU2EjdU6I4JTxY2XSFI0VgmnsmpDw==
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

2026-09-17T08:20:23.521705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028938
observed 971e2cf3dfff4178fa9a547e92708ec5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:23.497975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028938/manifest.json
observed de07cebe63ff568191196bcfb50372b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:23.478159ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028938/publication.md
observed 5fdae238b81cb94c4cfc190ebe1809a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:23.459702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028938/publication.txt
observed fabe4f63d7e29d327736ce113d163f55...
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.