OpenTechnical

OT-2026-000030975

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, pulsed 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-2026-000030975) never changes.

Identity and time

Publication numberOT-2026-000030975 · never reused
Internal UUID01a0ae74-3fb7-75ea-828d-d66061d593ed · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:49.275361Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030975
StatusPUBLIC

Content hashes

Canonical textbb9fd1b346054e0f2b3749fafaeba3b5dd3345a3d78d22f35246f693aa44494a
Markdownfd913276fbea4bbf160eb8e2f1d968263e823c4db4ab8d69da97c03a1498d39a
PDF
Publication page58583c3ee1172a4d05096360b23b449789422691aed4684c64aa78dd2c55d121
Manifest220fd73bf3bdf8be65fbfe934bcba76823726f17d4a233839be8b0fefbac5df4

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
SignaturexI1St4jmtbe1YCGom50DffByudT2SODZ287gQMiepYX37USLWtV+quVVAghRoQMHezcNyXY8BYRzLNZ0/PR5Cg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:36:58.539870ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030975
observed 58583c3ee1172a4d05096360b23b4497...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:58.521383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030975/manifest.json
observed 220fd73bf3bdf8be65fbfe934bcba768...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:58.503712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030975/publication.md
observed fd913276fbea4bbf160eb8e2f1d96826...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:58.486205ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030975/publication.txt
observed bb9fd1b346054e0f2b3749fafaeba3b5...
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.