OpenTechnical

OT-2026-000022673

Publication integrity record

Single cup vacuum gripper, common isolation valve, pump fed, 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-2026-000022673) never changes.

Identity and time

Publication numberOT-2026-000022673 · never reused
Internal UUID01a0ae70-46e9-77a9-9670-657831c5ac83 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022673
StatusPUBLIC

Content hashes

Canonical text7b52a5daf27caf959b5c52b6871331bf0818cb988bed21bdc3d71a748b0627ba
Markdown418b369475ac52fadaba5f312f81041ad6c07bbfe976856cc9bb17d7a4982dc0
PDF
Publication pagebff0e9af4830df8ec2c2e51949daaf81a618ec3325008ba1eceab1a1145e0019
Manifest9f77ad290dfd848cdc1db922fbdd2fa26e4aac6b2ab36704c046d7a93e84537a

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
Signature16M/oJsDDeJ8UUKO4yJwlH6GLBiJ/cBSgXxmog6XvGAn6sfujXbFffel+T58hADYFGEs4hzb0jThF/IZc96PCg==
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

2026-09-17T11:52:03.546036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022673
observed bff0e9af4830df8ec2c2e51949daaf81...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:03.530299ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022673/manifest.json
observed 9f77ad290dfd848cdc1db922fbdd2fa2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:03.514310ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022673/publication.md
observed 418b369475ac52fadaba5f312f81041a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:03.496072ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022673/publication.txt
observed 7b52a5daf27caf959b5c52b6871331bf...
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.