OpenTechnical

OT-2026-000080013

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, plant vacuum fed, 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-2026-000080013) never changes.

Identity and time

Publication numberOT-2026-000080013 · never reused
Internal UUID01a0ae96-4377-77a4-81f2-2662dc2cccdf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080013
StatusPUBLIC

Content hashes

Canonical text5311daee8d86cdad13c22c45d8e47570ca7618feea2c52c51d0c7f6022933a50
Markdownde7191557c9a951164a13383b06cc53715e77a61a8e93975c2297a52e5947d66
PDF
Publication page593495912da3899f99a3097fac4422add9f5de0159c99f15477a23ed8087b283
Manifest87c9725767ea2a90fbead257fe9462ed7f6e8ebc7d2c77425889a113488f00a0

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
SignaturevV5f7YTP9ZLWQaWX0v8nl448FFp7GJzukA6/84ppnO8QoN/D/+Ho4jUzuhqjEnH2BSqH0mNNbb/Mx1PVHqAUDQ==
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

2026-09-17T10:03:56.000172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080013
observed 593495912da3899f99a3097fac4422ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:55.981103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080013/manifest.json
observed 87c9725767ea2a90fbead257fe9462ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:55.963325ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080013/publication.md
observed de7191557c9a951164a13383b06cc537...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:55.944467ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080013/publication.txt
observed 5311daee8d86cdad13c22c45d8e47570...
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.