OpenTechnical

OT-2026-000011841

Publication integrity record

Foam pad vacuum gripper, common isolation valve, 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-2026-000011841) never changes.

Identity and time

Publication numberOT-2026-000011841 · never reused
Internal UUID01a0ae6d-1941-77fd-99ae-bb51bbd66f11 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011841
StatusPUBLIC

Content hashes

Canonical text279aec98a0c2454ba81046e96b65f2860bd7746fad5d95e9d012dc8e44b3d1e5
Markdown380dbf0437797263d628d15a3c547d76bcceb3239a4dbc1774424dccb4b9074c
PDF
Publication pagecec5d567ad8dde10bd23cd7ba02a65e3054f6cadacff410153dff041cd1157f1
Manifestf44a33fecf318ab2f36d130fe30768bd1076f41331f2e6d64ce1dbfa17d555c7

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
Signature7yMKXDJpti5bmOUAC2DuGZCZaiWojKCIQHQ/eZ6F7C34WY+HR4d+Xw4g7nbdVxZkE9cML2+SV1ZfVCuOyCWCAQ==
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

2026-09-17T12:12:34.754276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011841
observed cec5d567ad8dde10bd23cd7ba02a65e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:34.734082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011841/manifest.json
observed f44a33fecf318ab2f36d130fe30768bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:34.713267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011841/publication.md
observed 380dbf0437797263d628d15a3c547d76...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:34.693479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011841/publication.txt
observed 279aec98a0c2454ba81046e96b65f286...
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.