OpenTechnical

OT-2026-000102315

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, pulsed blow-off after 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-2026-000102315) never changes.

Identity and time

Publication numberOT-2026-000102315 · never reused
Internal UUID01a0aea4-50f4-7a1b-b7f7-3a9758dca2fc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:19.361569Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000102315
StatusPUBLIC

Content hashes

Canonical text14b85367f855bd4949a1cd285d44d32d3bdad359b0e84f6ca27285da0b4facaf
Markdown67e9ccd35960ed07d10777c130d7a8205f70e3a9be613826b86ef90a35d0a9cd
PDF
Publication page4b8881e7fa98e596becb3a7bcae18efaf337514bb11b4898983d4b2cc29b4d1a
Manifest90752b31dc579508e9a9f70e0461a7b2f2a991acb50e4614b875702e17046e30

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
SignatureyUfnyIlU4sn5f3lbcmCZyuA6tFMiaGOlscy8Pt8nRKPo47E+jrGLygLFJYbc1dN+WQSHP6BJcTAcImHdMvgaBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:25:30.746898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102315
observed 4b8881e7fa98e596becb3a7bcae18efa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:30.728329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102315/manifest.json
observed 90752b31dc579508e9a9f70e0461a7b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:30.709039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102315/publication.md
observed 67e9ccd35960ed07d10777c130d7a820...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:30.690302ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102315/publication.txt
observed 14b85367f855bd4949a1cd285d44d32d...
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.