OpenTechnical

OT-2026-000004886

Publication integrity record

Vacuum cup gripper, three zone face, six outlet manifold, pump fed, vented after set down

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-2026-000004886) never changes.

Identity and time

Publication numberOT-2026-000004886 · never reused
Internal UUID01a0a926-9ed5-7594-8575-92033f838fde · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:37:55.674707Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004886
StatusPUBLIC

Content hashes

Canonical text59f0736bbc36351ca0b8498857369e336328e6d9c6b0cf1b12c03cacc59f5ced
Markdowncd7956b8e1566864cc2fcf84e858712b356022293d94b471d27be4a176a1de25
PDF
Publication page07f2cccf337601e64a13f39a59454b5b2712f7bc4faef56f031edde5080a83e0
Manifest17df56435a9441224ec3ae0d630e430dda9e445afdf03ccec88e0dbf14c74309

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
SignatureoYqN3TyXgvgPPx2mw/0lRXb6rQWP4Tp7vQ6qocrQLXjv27w19Tj++nAZs7dQ/76olpBGNS6hcj4hYmyIOArnAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:40:08.404756ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004886
observed 07f2cccf337601e64a13f39a59454b5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:08.391538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004886/manifest.json
observed 17df56435a9441224ec3ae0d630e430d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:08.378954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004886/publication.md
observed cd7956b8e1566864cc2fcf84e858712b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:08.240014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004886/publication.txt
observed 59f0736bbc36351ca0b8498857369e33...
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.