OpenTechnical

OT-2026-000007720

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, pump fed, pulsed blow-off before set-down

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-2026-000007720) never changes.

Identity and time

Publication numberOT-2026-000007720 · never reused
Internal UUID01a0ae62-843f-72e6-a9e1-c40be1adbdc6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:01:27.126957Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007720
StatusPUBLIC

Content hashes

Canonical textbc6af71040e0f984fa3945fe137af3106fd7c4547cac9b8a6e93e01034a71556
Markdownb3a10316c56226075ad625d7bf058030aa1c238415fba57509cfbee4a92cb098
PDF
Publication pagee9a826208aae2c2fcb0d023c369e08bb901146154b3da6fb1ba210ba2d67bbc4
Manifest985bac9aea9c7df18f35acc48f8c295160e9a66aaf5c640a155ea962bcdd4666

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
SignatureCVareVuB1kA2IMn5QzMY2Gw+yupYUbh6T25fID+pD0+SyyKOvv50zo4HtDSx/TADpP5egypUVGZPFECUXQD7CA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:07:02Z
batch OT-TS-2026-W38-016 · RFC 3161 token · inclusion proof
root 8d90bf9341d96baa4328c218b6f85281...

Independent retrieval

2026-09-17T08:10:06.511367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007720
observed e9a826208aae2c2fcb0d023c369e08bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:06.495873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007720/manifest.json
observed 985bac9aea9c7df18f35acc48f8c2951...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:06.477488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007720/publication.md
observed b3a10316c56226075ad625d7bf058030...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:06.460042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007720/publication.txt
observed bc6af71040e0f984fa3945fe137af310...
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.