OpenTechnical

OT-2026-000005464

Publication integrity record

Vacuum cup gripper, two stage ejector, contact triggered, vented before set down, polyurethane cups

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-2026-000005464) never changes.

Identity and time

Publication numberOT-2026-000005464 · never reused
Internal UUID01a0a939-d6b2-7e98-a052-caf6a1c81600 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:58:55.156860Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005464
StatusPUBLIC

Content hashes

Canonical textfda25b61052007829a8312c1fbb6237e1e10ec5e5831012c2997a63069f114bd
Markdown63b5873b16ca14cc9bc273bed42fd8ac7265cc51035b31ea4f086bf92bca7441
PDF
Publication pageab546bcb95f2858bf4437e3d83caec3561f70a2435f40baab66001c07b6afd22
Manifestaf2df0040664123b94bec1851c96a6240c75aaf2d9580202eeda94e48fc5b095

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
SignatureFWLDjRfhUGlRMY4edbxtmRLpuglu042tKVkEF9NfxBpiGKVezmi/voqAG28i52EJ/NDfdETi21YXbPWP35CCCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:00:06.461782ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005464
observed ab546bcb95f2858bf4437e3d83caec35...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:06.449101ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005464/manifest.json
observed af2df0040664123b94bec1851c96a624...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:06.435932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005464/publication.md
observed 63b5873b16ca14cc9bc273bed42fd8ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:06.423765ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005464/publication.txt
observed fda25b61052007829a8312c1fbb6237e...
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.