OpenTechnical

OT-2026-000012938

Publication integrity record

Foam pad vacuum gripper, common isolation valve, single stage ejector, 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-2026-000012938) never changes.

Identity and time

Publication numberOT-2026-000012938 · never reused
Internal UUID01a0ae6d-5564-7ffc-b06f-3d655af42ae7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012938
StatusPUBLIC

Content hashes

Canonical textf863fcf40e9fd91e79aa3fb3e2478581a52761219354b717855fb9349a91dec7
Markdown0dfba4b2ba1016ebef96c0b1da18e7b831e53c85f85ec1e83e009eaf4f4cc4b6
PDF
Publication page8e0d3cb4d899c0dfd0598187512ee0d67749c670075c221fb38ad80bbb77a353
Manifest87e2d93a115c4876fb04d106b28e9be9ea8ce709bb26eedde223e3d04a34fc18

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
Signatureu45TBABubK+7L2mQgqh0wadRdMsEkGnB+2izE37mleVlcq31cDJt1cORKLvj5TvUBhNr6Od+csiF6JOGsjBbBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:10:44.434741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012938
observed 8e0d3cb4d899c0dfd0598187512ee0d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:44.416299ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012938/manifest.json
observed 87e2d93a115c4876fb04d106b28e9be9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:44.397401ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012938/publication.md
observed 0dfba4b2ba1016ebef96c0b1da18e7b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:44.377676ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012938/publication.txt
observed f863fcf40e9fd91e79aa3fb3e2478581...
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.