OpenTechnical

OT-2026-000007013

Publication integrity record

Vacuum cup gripper, four zone face, ejector fed, pressure verified, polyurethane cups, oval form

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-2026-000007013) never changes.

Identity and time

Publication numberOT-2026-000007013 · never reused
Internal UUID01a0a96f-8715-79d6-9435-8cf4d7aa7421 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:57:33.719972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007013
StatusPUBLIC

Content hashes

Canonical text812cf3b1ea20eac4dafb1a88c72f6312ed4acf5f4e3636cb944febc6e8ce01c9
Markdowne787ee219c540bf192a386db44bc1328f409628244790caff5bb5e4edb5f7b94
PDF
Publication page75b49bb20512a882d7723674525187b6c5f2f4bda908715336a954bd285ba46a
Manifest6b1e75c6c22d45edf5414d717c2075c93dd0a975d6ec10fc42dff6ccd3e3394c

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
Signature11u2puWsDNtWZL1NrLxwRX4N0kwnZpN1zg3qOU6R2cCVU2bx8ayEKLXbEuI+QWM1KyeVF9ZaUFwprUO2//2ZDw==
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

2026-09-16T09:00:11.741580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007013
observed 75b49bb20512a882d7723674525187b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:11.728053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007013/manifest.json
observed 6b1e75c6c22d45edf5414d717c2075c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:11.715168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007013/publication.md
observed e787ee219c540bf192a386db44bc1328...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:11.701602ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007013/publication.txt
observed 812cf3b1ea20eac4dafb1a88c72f6312...
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.