OpenTechnical

OT-2026-000006225

Publication integrity record

Porous face vacuum gripper, four zone face, per zone isolation, plant vacuum fed, closed cell

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-2026-000006225) never changes.

Identity and time

Publication numberOT-2026-000006225 · never reused
Internal UUID01a0a953-8bc5-75b4-b9f6-060ac4e740f0 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:26:59.912530Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006225
StatusPUBLIC

Content hashes

Canonical textf411d65ce563f20f1d6b8cf6cf93b4a317794a95f1b29a5ab2f2e47bf4b5d083
Markdown8d8e4d985bce3cb4e61595885cbaa128648f5bda4416c85ca930e3f653aeb393
PDF
Publication pagebfd30a4553630212b8027f91c2f91c00fa9412167ab14a594b7f78808362dc1b
Manifest093a9cc861ac0c70955675e57531357fdc50cd845189e13e585fd39a08dff596

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
SignatureijiRsAcOQwLZtgLvuiziGPdyCqokG+lYXTZHg0p7AmYIr5TUKLr310830QtUH1wtQ9LZdTRN9nnnDMxvF/64CA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:30:12.943771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006225
observed bfd30a4553630212b8027f91c2f91c00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:12.929937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006225/manifest.json
observed 093a9cc861ac0c70955675e57531357f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:12.916373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006225/publication.md
observed 8d8e4d985bce3cb4e61595885cbaa128...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:12.903367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006225/publication.txt
observed f411d65ce563f20f1d6b8cf6cf93b4a3...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent