OpenTechnical

OT-2026-000005017

Publication integrity record

Vacuum cup gripper, four zone face, pump fed, contact triggered on the face

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-2026-000005017) never changes.

Identity and time

Publication numberOT-2026-000005017 · never reused
Internal UUID01a0a92b-21f5-7c24-af17-79700ae71176 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:42:51.384315Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005017
StatusPUBLIC

Content hashes

Canonical texte60f777b2ee1afddd46ef9b844e0c37aa60f5d26f8f3fe051bb05ee5ba060bb1
Markdown471dcf40a44a4807f273e7751315d698f20f9dd9a04523588d898ebbb88b987f
PDF
Publication pagec9cb9ad80604bac6a43798b4966d063e0c7fd8b689a83bc8afe768474e126eb1
Manifest92ecf2ebed2496083941aeb511bce5e5990a2988ac20459ec4d9d7df045bf5f8

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
SignatureVUmEjN7VRHwWaOOxXUTONOv1JhSX1SbsucyFZ+L17Di1F4iLoKF673mKxO2lfVybQJiZMuL4UV5n71+lQp41Bg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:50:24.476517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005017
observed c9cb9ad80604bac6a43798b4966d063e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:24.461579ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005017/manifest.json
observed 92ecf2ebed2496083941aeb511bce5e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:24.447450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005017/publication.md
observed 471dcf40a44a4807f273e7751315d698...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:24.434050ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005017/publication.txt
observed e60f777b2ee1afddd46ef9b844e0c37a...
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.