OpenTechnical

OT-2026-000067249

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump fed, manifold pressure sensor, vented after 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-2026-000067249) never changes.

Identity and time

Publication numberOT-2026-000067249 · never reused
Internal UUID01a0ae8f-6bd6-7e8e-bca1-30961cfdbcd9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067249
StatusPUBLIC

Content hashes

Canonical textbc3503dc0230364dd373274d05943e29ade08ed3750a3cf2bdf5924a6eaef656
Markdown3c2927aa3db4d877fc7552f51a65a7b2219bdb92357bce3530e3b547b34021ea
PDF
Publication page78e42f5bfaf084bc6e5e0847a2dd03f712cb7638a3a4fd9a7bee6faf786319a9
Manifest077c8a11175b03c00b9a47ae77d5bfba78d378a1968beecb8e5e81ec064ade19

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
Signature47MBIj97lN6YpLWFs7D5vvSMakgfRpREJ/rW28PF6/ysb1bpBzTUoUoqh9VNJ1N1uqmy1xaMIRYefLDoxxKeCQ==
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

2026-09-17T10:30:55.423303ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067249
observed 78e42f5bfaf084bc6e5e0847a2dd03f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:55.406388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067249/manifest.json
observed 077c8a11175b03c00b9a47ae77d5bfba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:55.388244ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067249/publication.md
observed 3c2927aa3db4d877fc7552f51a65a7b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:55.369845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067249/publication.txt
observed bc3503dc0230364dd373274d05943e29...
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.