OpenTechnical

OT-2026-000006707

Publication integrity record

Porous face vacuum gripper, plant vacuum fed, pressure verified, vented after set down, open 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-2026-000006707) never changes.

Identity and time

Publication numberOT-2026-000006707 · never reused
Internal UUID01a0a964-a508-7b49-b9a4-124779c79a48 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:45:40.490409Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006707
StatusPUBLIC

Content hashes

Canonical textdbfc8acca417daf074ffffb15bef06c1f89e5dcb44ce940d183c03cc033b4cf9
Markdowne5b4f92211e2961c93ca12248bdd1f01ddad127a9059bb6f0e05269b8512ae3d
PDF
Publication pagec28ee6d69dad4cfbf3c107a6dc61098bed80400500fc1595de742cf3a78de390
Manifest301cf34805e0f06fa53222a1add0f72aa928608ef9eee5dfcacdc274cd05d1ba

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
Signature+WNG/VTsOZsxa5bsW1m1ncz5i082X0oJ/iQI2vocTISibugoyA0rQsl6saDNMzNVumjEbBRrREblH/SEcRQXDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:50:15.136203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006707
observed c28ee6d69dad4cfbf3c107a6dc61098b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:15.002191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006707/manifest.json
observed 301cf34805e0f06fa53222a1add0f72a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:14.988211ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006707/publication.md
observed e5b4f92211e2961c93ca12248bdd1f01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:14.974785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006707/publication.txt
observed dbfc8acca417daf074ffffb15bef06c1...
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.