OpenTechnical

OT-2026-000090123

Publication integrity record

Three cup vacuum gripper, three zone face, six outlet manifold, pump fed, manifold pressure sensor, sustained blow-off before 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-2026-000090123) never changes.

Identity and time

Publication numberOT-2026-000090123 · never reused
Internal UUID01a0ae9c-428f-7db9-9abc-f7ebb8fa317b · 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-2026-000090123
StatusPUBLIC

Content hashes

Canonical textf4fcdd10d25c196373ff53c50bc88aa74d19f4fe32447870e098a2726f8d34e4
Markdown9e170af506795c3881cc1c48abd8a3dee9696c97850141bead832ce11f22c666
PDF
Publication paged6fd6dd9fe0cf40389b4f7fa8265641a5a29cd6122c73bd087d496ffc78056d7
Manifest73c5c5b06ae8f0fda93ff5e91bcb1f74839b114613fe5f1846350419d7e8e4f4

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
SignatureihPEtiFJ2H8HzDOc2mE7WLl/jvkZxPhC1tniHm+D8aqsfWKJX/YRZCxzh9G09N0dX1AqLbLtDGFYeFcrFfgHAA==
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

2026-09-17T09:45:33.273024ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090123
observed d6fd6dd9fe0cf40389b4f7fa8265641a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:33.255608ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090123/manifest.json
observed 73c5c5b06ae8f0fda93ff5e91bcb1f74...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:33.238282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090123/publication.md
observed 9e170af506795c3881cc1c48abd8a3de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:33.220549ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090123/publication.txt
observed f4fcdd10d25c196373ff53c50bc88aa7...
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.