OpenTechnical

OT-2026-000056181

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented 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-2026-000056181) never changes.

Identity and time

Publication numberOT-2026-000056181 · never reused
Internal UUID01a0ae87-0a4c-745a-bdd5-9d17f719c02c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056181
StatusPUBLIC

Content hashes

Canonical text17f4f931cc78fce9bb931a2b8a15e9dc47d393bf272450ba319ff3537fc17bae
Markdown715c4bf42854ddc7ba7f304e4bf9e44b46e3aab72d46ab92341c5236319d6635
PDF
Publication page962b978d2e1a0b1c7286de8352be056e1b9b6ef9e478f78db5786705f561a1f5
Manifesteb30aa5818650f1b8cd9642436cc72c0b7b25475482a2e9a8e2939e3e852e89b

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
SignaturetJc0Eiu1rqihX5BZA1OaP7jgkypGfthkFFamR301WaOKPUGuFiDZntKOhC0g6VkkfeziDHm+9f0vGfzy2DPQCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:44.634505ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056181
observed 962b978d2e1a0b1c7286de8352be056e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:44.615686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056181/manifest.json
observed eb30aa5818650f1b8cd9642436cc72c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:44.597649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056181/publication.md
observed 715c4bf42854ddc7ba7f304e4bf9e44b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:44.578683ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056181/publication.txt
observed 17f4f931cc78fce9bb931a2b8a15e9dc...
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.