OpenTechnical

OT-2026-000090116

Publication integrity record

Three bellows cup vacuum gripper, three zone face, six outlet manifold, pump fed, manifold pressure sensor, sustained blow-off 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-2026-000090116) never changes.

Identity and time

Publication numberOT-2026-000090116 · never reused
Internal UUID01a0ae9c-428f-755e-8572-7cae0fc7a2a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090116
StatusPUBLIC

Content hashes

Canonical textad749df6d272f8c602f09809c66e5f5970739bb963c709b354849d56874f1aac
Markdownceef5440ee0eb6b68d40ae298df2b8cd88e4da7c6bc5d25d6eb458ce1aac35aa
PDF
Publication pageda383b2ebe67f3b03953c19525dc26f5dceab01299f29877009178c896317d94
Manifest2df8ca3cbc9784e5d0cc066dab5ba4e6a79d3bea3b1736e345d3db67e8b91750

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
SignaturegxdwYv7Ox6VeKJrPYUOYpLogprfUEblwavyLD7CTGLI6VrQ6L+V4ber3ZH9q0tK06x6L4lYqS2gfxcIXendlDQ==
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

2026-09-17T09:45:32.715697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090116
observed da383b2ebe67f3b03953c19525dc26f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:32.697247ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090116/manifest.json
observed 2df8ca3cbc9784e5d0cc066dab5ba4e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:32.678538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090116/publication.md
observed ceef5440ee0eb6b68d40ae298df2b8cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:32.662108ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090116/publication.txt
observed ad749df6d272f8c602f09809c66e5f59...
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.