OpenTechnical

OT-2026-000042374

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, three stage ejector, sustained blow-off after 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-2026-000042374) never changes.

Identity and time

Publication numberOT-2026-000042374 · never reused
Internal UUID01a0ae7a-5d74-74d7-994e-a711c66ff6df · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042374
StatusPUBLIC

Content hashes

Canonical textb21c3f2a65a9f3c751ce50337bb537cfe0528437738c67033ce9d1adf933603f
Markdown08ed79ee30cad092b60b2e33a7926c22f0c9938d8f87758744fc17e02371d4b4
PDF
Publication page4b77fb55025d22a4b68cb97dfce34dd016d08326085027f768f7e98604e14370
Manifestc567080183a5adc7caaecb7f8e1cca488fe0da5dbd8a0ca4913d126c54ad1376

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
SignatureLhkgV54UQKcrmxXz2YJNodMCID6FJs6zApI5J5y5rfDCCfypFJWL6kInP6EmWE1aiHyNSLspEOSd9xzIUqU2AA==
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

2026-09-17T11:16:09.822923ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042374
observed 4b77fb55025d22a4b68cb97dfce34dd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:09.806126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042374/manifest.json
observed c567080183a5adc7caaecb7f8e1cca48...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:09.787522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042374/publication.md
observed 08ed79ee30cad092b60b2e33a7926c22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:09.771294ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042374/publication.txt
observed b21c3f2a65a9f3c751ce50337bb537cf...
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.