OpenTechnical

OT-2026-000019915

Publication integrity record

Four bellows cup vacuum gripper, four zone face, 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-2026-000019915) never changes.

Identity and time

Publication numberOT-2026-000019915 · never reused
Internal UUID01a0ae6f-1fb7-7e9a-a523-334c35670dab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019915
StatusPUBLIC

Content hashes

Canonical texte47d2885f9556262c11254d2e120ca61017356ff3b86b659712fd0a5f715f8d1
Markdown357d9e407d77790f505be9050d8d745b920ccd96d804a6695126e60681b6e90e
PDF
Publication pagec36bdb4d04d9204ae38f04a6c79da0b1224e5fb6d10381486599328535d9574f
Manifestbff57a54e16a36271cece40ec4eff6ed756a07c538e81459ed827f3766d27960

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
Signatureh3xXmvIpDpGupjskAzvHQFIVlxxHBrfCZrNi71GFwn2qADqZaeFKjd2oT9h1HGMSMcCBxQXghgQGq+8nW+GSBQ==
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

2026-09-17T11:58:07.863483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019915
observed c36bdb4d04d9204ae38f04a6c79da0b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:07.842502ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019915/manifest.json
observed bff57a54e16a36271cece40ec4eff6ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:07.822562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019915/publication.md
observed 357d9e407d77790f505be9050d8d745b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:07.803954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019915/publication.txt
observed e47d2885f9556262c11254d2e120ca61...
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.