OpenTechnical

OT-2026-000007110

Publication integrity record

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

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-2026-000007110) never changes.

Identity and time

Publication numberOT-2026-000007110 · never reused
Internal UUID01a0a973-0c41-7844-a443-28d048f2eeb6 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:01:24.419679Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007110
StatusPUBLIC

Content hashes

Canonical text5fd843319fee37552feb2e54243612a47849c3bd7076c809b86f658d48bd2e05
Markdownd0821272de927433abddfebaab725dd02fd65a267fb68a01fd4cd8683aba2d05
PDF
Publication page20cde7479e29f8d216fe10cb08bd338532aee0382ed84e610d687f37b58984fc
Manifestbd11f1b9f47d68fc3210d5e2481513fec767b02d068378bf0a10b991223e9593

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
SignatureIar5bv6ih0Gxyp1jEu1HCLo5pXgXjP4HCdbkHX85K9uHk8ZSdqUcunmUQyoqpn1OJ/uyUlBcOlW3XEqTYatBAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:10:25.962853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007110
observed 20cde7479e29f8d216fe10cb08bd3385...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:25.949591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007110/manifest.json
observed bd11f1b9f47d68fc3210d5e2481513fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:25.935998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007110/publication.md
observed d0821272de927433abddfebaab725dd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:25.920933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007110/publication.txt
observed 5fd843319fee37552feb2e54243612a4...
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.