OpenTechnical

OT-2026-000072936

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented 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-2026-000072936) never changes.

Identity and time

Publication numberOT-2026-000072936 · never reused
Internal UUID01a0ae92-c815-7218-b97e-005ce0711019 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072936
StatusPUBLIC

Content hashes

Canonical text7595d4d9c75712fc288de67d0c47d684194f976eff6bdc2f27bff6ac9e84a7cf
Markdown3c13969f2764340b83f567a51dcc595753c40fa8c2c68759d858dd1417df67ea
PDF
Publication page7ce3e175bcf90cf1659719a0107046e20e2dedae1a6e552927f9343d3761523c
Manifest2a4cd2630beb862cb548512b28395f1706203d97b4c2701a6cd8a2b5b703464c

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
SignaturefAAr6hHt4yobyEj8cwYzZ7Az0r8MVVTvrcHb8pUoqZ8tbZui0ckqzaFUdX3ViDMTEXDSrHTWOioxeTbCPx2rDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:21:51.235721ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072936
observed 7ce3e175bcf90cf1659719a0107046e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:51.217155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072936/manifest.json
observed 2a4cd2630beb862cb548512b28395f17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:51.192317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072936/publication.md
observed 3c13969f2764340b83f567a51dcc5957...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:51.174006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072936/publication.txt
observed 7595d4d9c75712fc288de67d0c47d684...
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.