OpenTechnical

OT-2026-000006020

Publication integrity record

Porous face vacuum gripper, pump fed, pressure verified, contact triggered, vented 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-2026-000006020) never changes.

Identity and time

Publication numberOT-2026-000006020 · never reused
Internal UUID01a0a94c-7e46-75cc-9c09-5d9ff6d9f9bb · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:19:17.704930Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006020
StatusPUBLIC

Content hashes

Canonical text37415ac560d7497248bb7e5f89564e8f7af118333af757aafeecdfb7b0259911
Markdown22e9c983609af673c81473b45d624b6380537535f96a3970c255a32508a02b5c
PDF
Publication pagefaf429c17ea434af78e8848f100d5056694e797f9cdcad542f6715c751274bfe
Manifest834b37738ff85ce28c7184dff232a3c8a40165a4598ed52328f36069c9e41864

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
Signaturenze7HxbgoDPx7PSqb2Aj1GeNcQN6vethp8JH3BdEDBmTcSt1BuASbY+JhwgpYgKjgqZX6si4Wa9Xd5c20pdPBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:04.882013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006020
observed faf429c17ea434af78e8848f100d5056...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:04.742677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006020/manifest.json
observed 834b37738ff85ce28c7184dff232a3c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:04.725173ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006020/publication.md
observed 22e9c983609af673c81473b45d624b63...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:04.711324ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006020/publication.txt
observed 37415ac560d7497248bb7e5f89564e8f...
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.