OpenTechnical

OT-2026-000023171

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, pump fed, 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-2026-000023171) never changes.

Identity and time

Publication numberOT-2026-000023171 · never reused
Internal UUID01a0ae70-7267-7a3d-aa5b-9783822b47a6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:40.056870Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023171
StatusPUBLIC

Content hashes

Canonical text84ad11c1a681a6137d2e909733342dcf26354ac4ea38e0ab12d6405e1ab89e78
Markdown6ff1edd340a2ffa8e448893bf313b60a536ba5b44da96e2fcde4d2c76dbf5dfb
PDF
Publication page9eafdbac478f70efbbed5aea0c9fbab3efbabc7f1ddb62ebf7b4ea26ad3d56b6
Manifest8389d50699e90e7c574a6f2dcbdbb18abc07174f5dcf4a65a56f24aecb936d49

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
Signature2On1DZemCfVlZzVxa5dZRkADrEKRBn1+wAJUmtokC2IijV2gvAkw1TF99O5etojgKkf0kQ3JzfFgJPrNTQXtAg==
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

2026-09-17T11:51:06.931812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023171
observed 9eafdbac478f70efbbed5aea0c9fbab3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:06.912561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023171/manifest.json
observed 8389d50699e90e7c574a6f2dcbdbb18a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:06.889574ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023171/publication.md
observed 6ff1edd340a2ffa8e448893bf313b60a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:06.872885ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023171/publication.txt
observed 84ad11c1a681a6137d2e909733342dcf...
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.