OpenTechnical

OT-2026-000087613

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum fed, supply line 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-2026-000087613) never changes.

Identity and time

Publication numberOT-2026-000087613 · never reused
Internal UUID01a0ae9a-cd53-71d2-bee3-3bb502163400 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087613
StatusPUBLIC

Content hashes

Canonical text6643ca619d5f2f26dcb68051231fd8cb9feddf624dc3d14fb5cb7f111c2474e0
Markdown1be276ae1a436c34bc4dea35b5f8c2569e9a16cbe8325db57d17897d8ef148a9
PDF
Publication page1c2f2c42e7ed5099b0631e732dd9a71ba913a7937cddf4cae433ff501eed6479
Manifestf101b6dab99ea9acb0a35a9b5a8c2a565d6e9264a3dc048a5e81d99f3c78b7c1

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
SignatureAINjU+XpUR8PIuu2ICF6+VTzESR/fG+sDenGLbTOFeCjOX73djHrNTW4OdfZ14ySGxoU4mgE5dZDlOBfml0nDw==
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

2026-09-17T09:51:03.326153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087613
observed 1c2f2c42e7ed5099b0631e732dd9a71b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:03.311363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087613/manifest.json
observed f101b6dab99ea9acb0a35a9b5a8c2a56...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:03.295965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087613/publication.md
observed 1be276ae1a436c34bc4dea35b5f8c256...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:03.280752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087613/publication.txt
observed 6643ca619d5f2f26dcb68051231fd8cb...
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.