OpenTechnical

OT-2026-000091104

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, pressure sensor per zone, sustained blow-off 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-2026-000091104) never changes.

Identity and time

Publication numberOT-2026-000091104 · never reused
Internal UUID01a0ae9c-f16b-7169-9d57-2bf5142be613 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091104
StatusPUBLIC

Content hashes

Canonical textf4148cfddeaf893632554967a87e1f1e61cb54ee75de0d7aef61e7ea3bd2b0b4
Markdownf31757c3062d0fb9bb455a0eeb7b777e604b25f5765a44d3c342c64c9d99af76
PDF
Publication page54952ac6cfab7b75d8734dda445e56ee975f9258b3e917e6db92662937aea337
Manifest99f1fb285ca122588ef584a002193e41aa584dedf57e69d0310b7ece4430ba84

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
Signature/L+A+ftY44B5xlwIDPXI26yZxIOtKLABN2jerlSbNvgo3G7v61qdMTJpVWJN7k2I583wfT3BNp9u/TAMUqhFDw==
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

2026-09-17T09:43:15.266367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091104
observed 54952ac6cfab7b75d8734dda445e56ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:15.247554ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091104/manifest.json
observed 99f1fb285ca122588ef584a002193e41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:15.230389ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091104/publication.md
observed f31757c3062d0fb9bb455a0eeb7b777e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:15.212215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091104/publication.txt
observed f4148cfddeaf893632554967a87e1f1e...
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.