OpenTechnical

OT-2026-000091375

Publication integrity record

Foam pad vacuum gripper, two zone face, three outlet manifold, pump fed, pressure sensor per zone, 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-2026-000091375) never changes.

Identity and time

Publication numberOT-2026-000091375 · never reused
Internal UUID01a0ae9c-f16d-79a1-b2f6-d18cd41cc8a9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091375
StatusPUBLIC

Content hashes

Canonical text17e874b0670fc31c9e19c1e0747b5c4e969ec15f7515ac245652a33068ad9033
Markdown4c49e9d57c0fad4324d62ee2126cf066284a16176eef6ebd342cc091e4e5830f
PDF
Publication page825c79149bfc03ae5f93f18cb3c517e5ee76577f56af2c603ef5d82cc16814dd
Manifestcfb7852fc3b74b2bd54e627c787a7129948adbbaa3c75b62f478445098b18e92

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
SignaturexbDDjL/5sD7g3kd4I3LhUiYdfjrUKzJRHHOv8uByjtVBwD94kIpPCQ1qSWtQIGGKD9+j+tavHogf0Vq5aShSBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:43:35.711217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091375
observed 825c79149bfc03ae5f93f18cb3c517e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:35.694082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091375/manifest.json
observed cfb7852fc3b74b2bd54e627c787a7129...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:35.675853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091375/publication.md
observed 4c49e9d57c0fad4324d62ee2126cf066...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:35.657938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091375/publication.txt
observed 17e874b0670fc31c9e19c1e0747b5c4e...
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.