OpenTechnical

OT-2026-000071290

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, vented before set-down, on a tool changer

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-2026-000071290) never changes.

Identity and time

Publication numberOT-2026-000071290 · never reused
Internal UUID01a0ae91-e0ec-775c-ac69-0eb86cee1d71 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071290
StatusPUBLIC

Content hashes

Canonical text6d2ed9183606005d30f87b6cde79014a4034f187b509e3ce6c9e84466db7ca83
Markdown4fb02f235982e29dbae0bee3ae4b6d50a8f0f6fe60503f6d87a5da841b5baa7e
PDF
Publication page43ebabf1491218f6708dff43afda877560b223302761864a5b789b88cdf33f01
Manifestadfd4e26ccb0bf16c7efb47fa03d9e2b58b3a92aedb308a6d17dd3eacc1ff8e5

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
Signaturevc1dO5ZPPlRyKCYLP+9rb7eQ7NHosGi4e4M6+OVJ1jmEo7HMOgKvTMEJzBV5ZGQwl5+JUvr7xfMBMZCifThWBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:24:51.193166ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071290
observed 43ebabf1491218f6708dff43afda8775...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:51.166320ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071290/manifest.json
observed adfd4e26ccb0bf16c7efb47fa03d9e2b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:51.143233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071290/publication.md
observed 4fb02f235982e29dbae0bee3ae4b6d50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:51.124368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071290/publication.txt
observed 6d2ed9183606005d30f87b6cde79014a...
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.