OpenTechnical

OT-2026-000007420

Publication integrity record

Vacuum cup gripper, four zone face, three stage ejector, 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-2026-000007420) never changes.

Identity and time

Publication numberOT-2026-000007420 · never reused
Internal UUID01a0a97e-2939-7e39-9a2a-01c73c497768 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:13:32.732355Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007420
StatusPUBLIC

Content hashes

Canonical text96f02c696376a98b33ebc6ded84553d7ce569826110c28df431d9b96dbc20fa4
Markdowndb59ea2b60756c890ac012b01185c947c7d7a7e7025a4d3a5353d77bd2f49d67
PDF
Publication pageadbcf31fb0048518f58c32e2cebf933fb6675fe34390939e5e90eab290c899bd
Manifest50da62104c7e184abc8193c47d35369ec68b3d175a7c5d0f4bf94565b76b1e83

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
Signature0l6iDLPiR64Nh0u099WBBPX2fuF+ctLGQUnIGh1bA8B5cgJkifPt62RREHW28iqbXkeX3MUlivZ1f9OWja7ZCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T09:20:06.369584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007420
observed adbcf31fb0048518f58c32e2cebf933f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:06.356446ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007420/manifest.json
observed 50da62104c7e184abc8193c47d35369e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:06.344211ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007420/publication.md
observed db59ea2b60756c890ac012b01185c947...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:06.331910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007420/publication.txt
observed 96f02c696376a98b33ebc6ded84553d7...
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.