OpenTechnical

OT-2026-000005872

Publication integrity record

Vacuum cup gripper, two outlet manifold, pump 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-2026-000005872) never changes.

Identity and time

Publication numberOT-2026-000005872 · never reused
Internal UUID01a0a947-afc6-79ae-9321-c1c1ebe52247 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:14:02.697560Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005872
StatusPUBLIC

Content hashes

Canonical texta68b869b2b9add60e66975a8fe4dd60c4941dc601170b0661b3929b4116e5ec3
Markdownc473f1d4065be9729b70eee7cb321c11fcc28495a6f63dc223c414d2dde06265
PDF
Publication pageb5ddf696df28befb59bd11c02a2987ad4e00324aad42be997ce7c5f9be8de699
Manifesteeed4e80d1707c40a5a01d9a2b3c756d4ed193e07c9845ecb3060796a66ac85e

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
SignatureHLZPQktxmLx1a6+NfiYSejF3o+bV5jYGRy80Yx/kppjt3PqsUE8EHH8Q1EC0kQHLTIJdzWV7qqfvtVi19/jFDQ==
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

2026-09-16T08:20:23.153414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005872
observed b5ddf696df28befb59bd11c02a2987ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:23.138776ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005872/manifest.json
observed eeed4e80d1707c40a5a01d9a2b3c756d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:23.123708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005872/publication.md
observed c473f1d4065be9729b70eee7cb321c11...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:23.006260ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005872/publication.txt
observed a68b869b2b9add60e66975a8fe4dd60c...
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.