OpenTechnical

OT-2026-000099720

Publication integrity record

Two bellows cup vacuum gripper, two zone face, pump fed, pressure sensor per zone, sustained blow-off before set-down

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-2026-000099720) never changes.

Identity and time

Publication numberOT-2026-000099720 · never reused
Internal UUID01a0aea2-c977-7c5b-930e-6d31e21650a0 · 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-2026-000099720
StatusPUBLIC

Content hashes

Canonical texta2ac65a6e705c95759da35c3cbb2658cab61e96c4d9e71e49ebc468d73f53285
Markdown331011e19e275907a4ca569b78941db3660b455cd9a4a7199d17756f41fa81a5
PDF
Publication pagecb8e4ed8df488bd4b4a4a441dde706971996740dbab0eeb731066c64181ddfc5
Manifest273c5f4c459e9b570fcc5509f0740d3ee26a7a8349cd07b69bb15e017c3a4af4

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
Signature1Yfc90kMW/4/ph5S75nVZ5rotGp4DAWJgCpkE3B9z7o8oS7TnmOz25ZLEXsZe8DJqp5pASF7/nu/vKB9WVpeAA==
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

2026-09-17T09:29:44.406314ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099720
observed cb8e4ed8df488bd4b4a4a441dde70697...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.389384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099720/manifest.json
observed 273c5f4c459e9b570fcc5509f0740d3e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.373341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099720/publication.md
observed 331011e19e275907a4ca569b78941db3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:44.355629ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099720/publication.txt
observed a2ac65a6e705c95759da35c3cbb2658c...
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.