OpenTechnical

OT-2026-000100403

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, three stage ejector, pressure sensor per zone, 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-2026-000100403) never changes.

Identity and time

Publication numberOT-2026-000100403 · never reused
Internal UUID01a0aea3-66ee-799f-b38a-7051bf9b08f0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:19.463543Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100403
StatusPUBLIC

Content hashes

Canonical textd6d85b1befc6ee5c5404f3d13407f2de8354fc83399cb292a0f7647a903ef7ae
Markdownca35815ed41158ab8e3a4924377f7ea3e0dc6fe6195dbda0c41d01618b535017
PDF
Publication page60db25a4db2b7b2484b97a90dd2930e10313756e683cd0ff0c31eed90d79c38b
Manifestfe1ceb36ba02068f216574a3ee99f17c5e25e13437719cd996bc118d62902323

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
SignatureQjk8pkXzcoXt/HSA0cLPbwSp+Rnpl7wRqa/NL5DUIDjTcuMxG6n999M2x0qkUAMKHIv44RUByhsF7MSJtUiEAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:27:08.480336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100403
observed 60db25a4db2b7b2484b97a90dd2930e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:08.463788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100403/manifest.json
observed fe1ceb36ba02068f216574a3ee99f17c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:08.445990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100403/publication.md
observed ca35815ed41158ab8e3a4924377f7ea3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:08.425173ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100403/publication.txt
observed d6d85b1befc6ee5c5404f3d13407f2de...
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.