OpenTechnical

OT-2026-000048091

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, two stage ejector, pressure sensor per zone, 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-2026-000048091) never changes.

Identity and time

Publication numberOT-2026-000048091 · never reused
Internal UUID01a0ae7f-c423-7cea-bdc3-2bdd7ddbae36 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048091
StatusPUBLIC

Content hashes

Canonical text0220a0689dc9a468aceac39401b5111d3868d3ab5f3fc3b0c5329651844b4396
Markdown76f53df79e2647f3cf1a6c55f0d7124251466872174986daa0c6cbbec307b550
PDF
Publication page2d56745e88c6ae729a85dffdca670e1d48dc1bd2bd441e893438332e3342d667
Manifest50f6047a43c7636896553bc024a100ac579fcbc4cbed3be7ce8ee797843a633a

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
SignatureI5jutWUlsFqAJdstdcMmp1OAI+J1SlvNbOJNknI5C9f9X5doaSDQmkzGHGAGXxVygpqEX4w+FJnFZpf5tmDHAg==
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

2026-09-17T11:06:06.763374ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048091
observed 2d56745e88c6ae729a85dffdca670e1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:06.746095ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048091/manifest.json
observed 50f6047a43c7636896553bc024a100ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:06.729749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048091/publication.md
observed 76f53df79e2647f3cf1a6c55f0d71242...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:06.710398ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048091/publication.txt
observed 0220a0689dc9a468aceac39401b5111d...
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.