OpenTechnical

OT-2026-000091580

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, pump fed, 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-2026-000091580) never changes.

Identity and time

Publication numberOT-2026-000091580 · never reused
Internal UUID01a0ae9c-f16e-7f4b-af9b-bba063601ea5 · 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-2026-000091580
StatusPUBLIC

Content hashes

Canonical text6f98c03002f7ea6ba0374d89436550d0e81c7c5bb894b8d2a2be211449409f07
Markdownae4d4686c5a080c0d708f2bb1c4ac1d3e6b92f23aa0ab3ebb2eb8d3e46722e98
PDF
Publication pagee2aead4c1238fbb7c6c1a69a87117ae67012b541c1fae0f7166d73966f0da29e
Manifest7b5c7300d01fcd7df51b70b39675d2492135be25dff621bcf15dbebc2cfa1ff4

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
SignatureNDECgyRd+nDlo6iDXfFEoQGlgtxVdTxLN3fLHaBybrUW00/mRmxGj5Qt0zjJZc5kYi0UdoQxaQH+7vc41VhDDA==
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

2026-09-17T09:43:51.160629ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091580
observed e2aead4c1238fbb7c6c1a69a87117ae6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.145226ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091580/manifest.json
observed 7b5c7300d01fcd7df51b70b39675d249...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.129398ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091580/publication.md
observed ae4d4686c5a080c0d708f2bb1c4ac1d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.113383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091580/publication.txt
observed 6f98c03002f7ea6ba0374d89436550d0...
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.