OpenTechnical

OT-2026-000027081

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000027081) never changes.

Identity and time

Publication numberOT-2026-000027081 · never reused
Internal UUID01a0ae72-3453-7f88-9d8b-98219e04dfdb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027081
StatusPUBLIC

Content hashes

Canonical textb6ae69c5655e1a0888bf92da51eb2fb8d590898017f184adb5d6ec49fbbe4607
Markdownf049e4d36dd4072b4789f02f24489062857ab3e5b09809ec11aefbe643b28d05
PDF
Publication page673e977a7e8707a9d9850efc699aae6f5024b4e1b51446833152e1b4d59eeab3
Manifest024ee89b6ca911bf1a8479c45d311d8b32f085a3af5f8086dd927de603527777

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
SignatureKaEcc6L+LEx6Pdmz4nS/Dq0+30nnLtG1QVtjIeSVW8UWsGD3ClGhZnPg7xAeEvrkLcisJAqQzuEU1iQyHzCiDQ==
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

2026-09-17T11:43:50.744412ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027081
observed 673e977a7e8707a9d9850efc699aae6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:50.724689ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027081/manifest.json
observed 024ee89b6ca911bf1a8479c45d311d8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:50.708160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027081/publication.md
observed f049e4d36dd4072b4789f02f24489062...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:50.691515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027081/publication.txt
observed b6ae69c5655e1a0888bf92da51eb2fb8...
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.