OpenTechnical

OT-2026-000018722

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, two stage ejector, manifold pressure sensor, 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-2026-000018722) never changes.

Identity and time

Publication numberOT-2026-000018722 · never reused
Internal UUID01a0ae6e-d520-7221-8051-988db3bc93bb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018722
StatusPUBLIC

Content hashes

Canonical text555a64fababb2781eb12906727d53272184f5b1ad848d07a296ced52b74eb5b5
Markdown79afe1e52b31cd30f79d52300125f61b46be36d0a6cd554b4c3fb7fdbec63584
PDF
Publication page340f3187e1aaced80e575e49db407ed0f9819bdc6f57568ae6d41e7eed3c607d
Manifest95572958796a13082bb2b195aa395d41cd7712f29019cc521ed1ba54d7d30e42

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
SignatureOk/Lpfgqr3ICnXvH++OXt/80sO2UuKU0UWgbPzvSxx5sy2kvZQ/j6IbR6OqfypOJirup4CgHRCNnrh4FGSZECw==
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

2026-09-17T11:59:19.731324ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018722
observed 340f3187e1aaced80e575e49db407ed0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:19.712769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018722/manifest.json
observed 95572958796a13082bb2b195aa395d41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:19.694145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018722/publication.md
observed 79afe1e52b31cd30f79d52300125f61b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:19.676091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018722/publication.txt
observed 555a64fababb2781eb12906727d53272...
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.