OpenTechnical

OT-2026-000006826

Publication integrity record

Porous face vacuum gripper, pump fed, pressure verified, vented before set down, open cell

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-2026-000006826) never changes.

Identity and time

Publication numberOT-2026-000006826 · never reused
Internal UUID01a0a968-b9f2-708a-a4d5-8b6d53f23785 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:50:07.989143Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006826
StatusPUBLIC

Content hashes

Canonical text8abc6c5e09fe6da6cb60594b1970367309ea9214999417a122364644d7c731fd
Markdown1edf82d701a8a10595057d981c7147c95a766903bb1d876a50dbe6cb33caa093
PDF
Publication page42f6ad4f0d73b9b1eac8d4deefa8246e322defb54f92bd5ea388cd9b2c425205
Manifest48d893449b7168fe77072d89d87a51386dc92d52a6c9b4c4182e988fcbabc200

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
Signature1j4cafVwfcvB7hWcE2mEDhziIfjOQcB6WkMw60Z0348DRrh9D+71v2EcSIZ2sb0bY45Ohfl2sqQRERpRfeNGDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:31.900267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006826
observed 42f6ad4f0d73b9b1eac8d4deefa8246e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:31.886177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006826/manifest.json
observed 48d893449b7168fe77072d89d87a5138...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:31.748691ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006826/publication.md
observed 1edf82d701a8a10595057d981c7147c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:31.736172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006826/publication.txt
observed 8abc6c5e09fe6da6cb60594b19703673...
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.