OpenTechnical

OT-2026-000006561

Publication integrity record

Porous face vacuum gripper, three outlet manifold, pump fed, pressure verified, contact triggered

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-2026-000006561) never changes.

Identity and time

Publication numberOT-2026-000006561 · never reused
Internal UUID01a0a95f-7f56-7c22-ae3a-b98c5827fe7a · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:40:03.160799Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006561
StatusPUBLIC

Content hashes

Canonical text0fd89dc57e55a2698dd9b4fd526b8a792597da2d8d2fb0422f37c920b3039828
Markdowndb40818295657bc7ea0c5ff101e47897eb81f64dc51ac62793db0108cf8e21f9
PDF
Publication page32c813ef9054e1d1bad245a7160d723ff0b746c654a2d856c52a0706038336ce
Manifest50029319242f9dd57ef483a9a31afc0dff369469a845dd9678aace694f70df72

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
SignatureA0bueoGNikPu4MhL4s0BGjJXdAwcklbe5PxWDLq5H3owlDNADkD1WXzZPg1xZ1zsz7Y7tGGXT47p8ZE36lZlBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:50:30.709875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006561
observed 32c813ef9054e1d1bad245a7160d723f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:30.695986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006561/manifest.json
observed 50029319242f9dd57ef483a9a31afc0d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:30.681910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006561/publication.md
observed db40818295657bc7ea0c5ff101e47897...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:30.666523ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006561/publication.txt
observed 0fd89dc57e55a2698dd9b4fd526b8a79...
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.