OpenTechnical

OT-2026-000031155

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, 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-2026-000031155) never changes.

Identity and time

Publication numberOT-2026-000031155 · never reused
Internal UUID01a0ae74-87ab-762d-9dd9-dd2b8d87f635 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031155
StatusPUBLIC

Content hashes

Canonical text0a98059049cf4364526137e6bf25b6a5d08d8d9350d1c04e62166ff693061ce4
Markdownb96faf91b1a37fde9b86080a60390b24798269ea921f882880632a56934e5c18
PDF
Publication pagebec4d5cc202878984b115252cb9c1fb5dea833df631058412f2455b6cd6e284d
Manifest9ed808b7e2122385ec1b7fc8aae9032f6b42471a2bd27f0648200f7caeb6d71d

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
Signature1mF6uiNOmPXBN0SQw2pxWc2Ju8llRE2y/sjWtQL3qvtbtbpShIs/Wx5S17YQpTkzCtnIeVHAVRJXCeu0I9mcAQ==
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

2026-09-17T11:35:41.812330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031155
observed bec4d5cc202878984b115252cb9c1fb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:41.789403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031155/manifest.json
observed 9ed808b7e2122385ec1b7fc8aae9032f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:41.770008ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031155/publication.md
observed b96faf91b1a37fde9b86080a60390b24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:41.748431ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031155/publication.txt
observed 0a98059049cf4364526137e6bf25b6a5...
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.