OpenTechnical

OT-2026-000031226

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum fed, pulsed blow-off after 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-2026-000031226) never changes.

Identity and time

Publication numberOT-2026-000031226 · never reused
Internal UUID01a0ae74-87ab-789a-a3e4-ccc26d676d8a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031226
StatusPUBLIC

Content hashes

Canonical text865cf7b6d5bf52f7cb39cef8566364b6c7beab7aa0640c404cb19996874bbc8e
Markdown60acb7048cb1238674d0a480e49143ecc44b2ee2777254a1eda21c8b45d6fb12
PDF
Publication pageffd958f05c702240821f608d0c411828524afa248a4dac0e56f062a898500f75
Manifestb421249241cea8fd01a345e98d8e0fd6290bf6c9380107e987ba0ffa4d557461

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
Signatureqk0XF6yETG+7Ftcpn/WkCTiEWMFEGGMf6ozunjWba07MTh5/s0mDRsbb0t3ONjecOd/Iqc1kdqAjiZlUjLO3DQ==
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

2026-09-17T11:35:47.688512ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031226
observed ffd958f05c702240821f608d0c411828...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:47.671034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031226/manifest.json
observed b421249241cea8fd01a345e98d8e0fd6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:47.655147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031226/publication.md
observed 60acb7048cb1238674d0a480e49143ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:47.637866ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031226/publication.txt
observed 865cf7b6d5bf52f7cb39cef8566364b6...
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.