OpenTechnical

OT-2026-000020798

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, pump fed, manifold pressure sensor, 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-2026-000020798) never changes.

Identity and time

Publication numberOT-2026-000020798 · never reused
Internal UUID01a0ae6f-65e3-7027-8e17-ad4f5af15316 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020798
StatusPUBLIC

Content hashes

Canonical textdbbc33c7e2d8aa91e90048602601fb9cd0f7714b8662fdd7accd9ab5bb923f55
Markdownc3a5f3b185af6478e72abe41e71259bd8f57a7c609b3e2a0f9a4771eeb25f47f
PDF
Publication page0aff70690161ba82b7d994389c658732c7abc4fdb44f0ac646a4d1e64479513e
Manifestd13dd77f3fdfb1517434c68365f531581c2e47ac87f8c52fc1bd06e0b0a94fcd

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
SignaturegZ4+Ez+awZdncNL/9RIyAUSoIN7bFmnS7xFKq4jYX/9s0rpdFpqqVNKHQSM8zUKTefy21rzMgOOpkeFqpNN8AQ==
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

2026-09-17T11:55:52.940499ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020798
observed 0aff70690161ba82b7d994389c658732...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:52.921810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020798/manifest.json
observed d13dd77f3fdfb1517434c68365f53158...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:52.904310ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020798/publication.md
observed c3a5f3b185af6478e72abe41e71259bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:52.887156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020798/publication.txt
observed dbbc33c7e2d8aa91e90048602601fb9c...
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.