OpenTechnical

OT-2026-000047739

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000047739) never changes.

Identity and time

Publication numberOT-2026-000047739 · never reused
Internal UUID01a0ae7f-c41f-7c77-a4ff-7d629971159d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047739
StatusPUBLIC

Content hashes

Canonical textd63c92fdfb801e9d3eb7edaf283fb0173d272aa5577656f18435dcfa1e013594
Markdowna408caaaa88b25f86039d04b48d2e00365e67cddf06edb97ddbb1f08a6ac9013
PDF
Publication page5c8efbbacc0fc7904d06db72c3e2f1f3b7e46964e47af6b48fd39800845b6484
Manifest6a6233e86c0b65ebff4d6b61ffcc2c7d187e78bf5718f2ec46814a08e6ca90c3

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
Signaturesn/Drp2SRDpCa85KKpd5p8TwPQTWz1FS0+FSMZ+OP2EMLPBO7WdV1wc3mA0DFyGbm6gkwW88RNJwE//dgBAqCQ==
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

2026-09-17T11:05:36.877023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047739
observed 5c8efbbacc0fc7904d06db72c3e2f1f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:36.857435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047739/manifest.json
observed 6a6233e86c0b65ebff4d6b61ffcc2c7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:36.838864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047739/publication.md
observed a408caaaa88b25f86039d04b48d2e003...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:36.818956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047739/publication.txt
observed d63c92fdfb801e9d3eb7edaf283fb017...
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.