OpenTechnical

OT-2026-000090649

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, 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-2026-000090649) never changes.

Identity and time

Publication numberOT-2026-000090649 · never reused
Internal UUID01a0ae9c-7f30-77d4-a4b1-65a06aec1455 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090649
StatusPUBLIC

Content hashes

Canonical text95bd1859e32fbe204f174091f39b4b9c256e0b52fd1c0b2dbde7dc61f5ee41c5
Markdownac5cade42567ef5f0c1d540568b279a0a4000da01b3493f6209ea804f6473ea3
PDF
Publication paged1b8abcd4fbf29ec3f6674d650b24087d6b778518ff052a95180f8970f8d355a
Manifest51bdcf54c29edf78f9bc0c6107d2b74926f4bf2014ebbd29c3b40c854ce79bd7

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
SignatureJIGgr4jFcDVtEBR2Sa1M+kGFfIv8o72XxmGdD9TPPUQ0Isbh8j9j6SUGADr9quw0n6mAuDwOL+gEB6sd9L/4Ag==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:44:50.267825ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090649
observed d1b8abcd4fbf29ec3f6674d650b24087...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.249421ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090649/manifest.json
observed 51bdcf54c29edf78f9bc0c6107d2b749...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.232890ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090649/publication.md
observed ac5cade42567ef5f0c1d540568b279a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.215791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090649/publication.txt
observed 95bd1859e32fbe204f174091f39b4b9c...
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.