OpenTechnical

OT-2026-000003527

Publication integrity record

Vacuum cup gripper, three zone face, three outlet manifold, plant vacuum fed, pressure verified

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-2026-000003527) never changes.

Identity and time

Publication numberOT-2026-000003527 · never reused
Internal UUID01a0a90a-488a-7415-b61d-f933715e05b2 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:06:58.573437Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003527
StatusPUBLIC

Content hashes

Canonical text23b49b1fe2115e2f0f36bb54498158518e780ebe65c151894def9e7ccb566c67
Markdown16061d5719f366036b608e6458485f8ed33aae0965c982d5a51d24b7c913395d
PDF
Publication paged753b548dcdea786d02dc7dbe511b204da16b3b9e67fad44dde7f8634f2ec098
Manifest352aad3cf2d2496c175b80d1a783faf33cf8c3ce5ad2289cded01161d9915225

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
SignatureEbMvwY8ESbNgdozGnSpuxDWYX6QhMOVgV+4HOl1Z1lAsfqrFUU57X1TwlBkcaoqqef28WUth8wa8aQU9vy8IAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:07:02Z
batch OT-TS-2026-W38-008 · RFC 3161 token · inclusion proof
root e9da7eb1c397f1749e5915c5a39dbbcf...

Independent retrieval

2026-09-16T08:50:35.160013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003527
observed d753b548dcdea786d02dc7dbe511b204...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:35.145193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003527/manifest.json
observed 352aad3cf2d2496c175b80d1a783faf3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:35.129444ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003527/publication.md
observed 16061d5719f366036b608e6458485f8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:34.990269ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003527/publication.txt
observed 23b49b1fe2115e2f0f36bb5449815851...
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.