OpenTechnical

OT-2026-000099730

Publication integrity record

Two cup vacuum gripper, two zone face, pump fed, pressure sensor per zone, sustained 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-2026-000099730) never changes.

Identity and time

Publication numberOT-2026-000099730 · never reused
Internal UUID01a0aea2-c977-7daa-8e35-1e79a2c21608 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:39.138466Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000099730
StatusPUBLIC

Content hashes

Canonical text8f8db42ad48895adb5e0ad41a27dd2f59d001249f6c4fe9c2349af26b83d7b54
Markdown86d948f6cbd474c22dc2cc6ce2e9549d72c352ee233c7cf03fe34cef118d75bd
PDF
Publication page761a660b80f6669e709a4d3be2e495745ab5d45ba8af50d55845ade1a8305c75
Manifestbb984039382b4a40fce622451f72f0bb15bea8dfbbb63780fcacab5b0d597373

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
SignatureWX11ESqtoiywQEbOqZ3dt1K3f+EAHrTumShPNThm0LXkcTmUnCmlzygLAIP3UZ6XShkv5aZF3p+HX1d4zJvfAA==
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

2026-09-17T09:29:45.040109ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099730
observed 761a660b80f6669e709a4d3be2e49574...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:45.021307ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099730/manifest.json
observed bb984039382b4a40fce622451f72f0bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:45.005079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099730/publication.md
observed 86d948f6cbd474c22dc2cc6ce2e9549d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.988900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099730/publication.txt
observed 8f8db42ad48895adb5e0ad41a27dd2f5...
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.