OpenTechnical

OT-2026-000074139

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, pump fed, manifold pressure sensor, pulsed 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-2026-000074139) never changes.

Identity and time

Publication numberOT-2026-000074139 · never reused
Internal UUID01a0ae93-7177-741e-8063-22eb7b7ba377 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074139
StatusPUBLIC

Content hashes

Canonical text64eda86e781a7d6fd980494957275d0eea9b4a550643d8c2df6933d4dfa4f97b
Markdowne2172073a4c52679b87864e77f859ff251a4cf9d2506bc506c1ca6b06dd05fbe
PDF
Publication page911031c348494fc240b08bc10f7e38e55eb417ed3b9891a6df1c152307057776
Manifest3542710e530fa0ae3fa7ef40f55aab89ff8e4ca6863133df93d81e9da6ee68f8

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
SignatureEb5+HkwxoE9UVMMXFzeC0TvUg2/dilxOCVOWPXPHeUz263g/fanzGeeb8ZlhfpvINabLPV0KkkR7A4LxP5zMAQ==
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

2026-09-17T10:18:58.976538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074139
observed 911031c348494fc240b08bc10f7e38e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:58.958610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074139/manifest.json
observed 3542710e530fa0ae3fa7ef40f55aab89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:58.942951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074139/publication.md
observed e2172073a4c52679b87864e77f859ff2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:58.926518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074139/publication.txt
observed 64eda86e781a7d6fd980494957275d0e...
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.