OpenTechnical

OT-2026-000004611

Publication integrity record

Vacuum cup gripper, two outlet manifold, pump fed, contact triggered on the face

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-2026-000004611) never changes.

Identity and time

Publication numberOT-2026-000004611 · never reused
Internal UUID01a0a91d-a9d5-7532-bbac-000d53f99eb5 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:28:08.664338Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004611
StatusPUBLIC

Content hashes

Canonical text088a24fcb5bea8214a0575d3fe677639a7c3515948a2153234be41a7ad77e0f0
Markdown9de9151ecc0c2f8e0e11bc97f9a6b3185cf9dd54abb98ed2a3bb07af54953f7f
PDF
Publication pagede56bffe24d35bee4f0bea4f31c3cfadc286da4165a4a42337abeeed3175b592
Manifest40300e5b98137d7b45bba12914a26d3fa34c160dee37cbc2702a8e61405c152b

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
SignatureNrfZx4pF/jt27iQRgh1uwxRLB/eiXo1AZ5XK626I0lacqGBlnSqbSwFh+ZVdQfczZ2eFVq30DXGqQ2xyNKcpBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:30:09.387179ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004611
observed de56bffe24d35bee4f0bea4f31c3cfad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:09.374133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004611/manifest.json
observed 40300e5b98137d7b45bba12914a26d3f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:09.241656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004611/publication.md
observed 9de9151ecc0c2f8e0e11bc97f9a6b318...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:09.224123ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004611/publication.txt
observed 088a24fcb5bea8214a0575d3fe677639...
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.