OpenTechnical

OT-2026-000060405

Publication integrity record

Single cup vacuum gripper, pump fed, vented after set-down

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-2026-000060405) never changes.

Identity and time

Publication numberOT-2026-000060405 · never reused
Internal UUID01a0ae8a-b7cb-7848-814e-6375c2f789c0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:21.818756Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000060405
StatusPUBLIC

Content hashes

Canonical text3d88f4eb57df01c7e129c64cc6426bb02bf6cbc95ff145504faded1adc77725b
Markdownc5790867a8a3212b0dee596b710069443f8ee54e08fb1ce10d1735e3524714a3
PDF
Publication page97fe9b38f22967984c16bb37bb01e409793f7250f1159addedceca57496152bf
Manifest6ce1f542dd134d2d74a923d671ac80d3932454db2144950977df2925777f2b60

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
SignaturemN0gClyb848p21VgDl7OaAD68hEe+PfKUqY/21Dhgo334+GCfZqmSxsHq44Kz1DtEzsf9pYzTV9pZqDMUdZNDw==
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...

Independent retrieval

2026-09-17T10:42:52.547176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060405
observed 97fe9b38f22967984c16bb37bb01e409...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:52.528345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060405/manifest.json
observed 6ce1f542dd134d2d74a923d671ac80d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:52.507317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060405/publication.md
observed c5790867a8a3212b0dee596b71006944...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:52.490408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060405/publication.txt
observed 3d88f4eb57df01c7e129c64cc6426bb0...
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.