OpenTechnical

OT-2026-000081793

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, 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-2026-000081793) never changes.

Identity and time

Publication numberOT-2026-000081793 · never reused
Internal UUID01a0ae97-0f74-7655-ae82-49d4e09f03fb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081793
StatusPUBLIC

Content hashes

Canonical textf20be9a4d3d598d97e56504e1019f3fdc8beb0e44e00b612df6871f68076d342
Markdownf002e5cb0bd6886ba1da27ba8ac2862e737d995abd00168a8c5da236e557498c
PDF
Publication page5ccaaeb43b5cf5acfa5aa95b785b65fa00deb23b726e856e4e1a1a2ea02f7b15
Manifesta4472a427c5f39eff4751d538576bbea03fadfaa4b79c9e604c264b935ecab41

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
SignaturefGcvtPnQATaE8+NymNy2PJIgQTA2oYB0OZlrnRALvZ3YaQuJUwLp1SnMOsC8jUktgp5Ph9eYzsgNHzv7IXsbCg==
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

2026-09-17T09:59:53.527021ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081793
observed 5ccaaeb43b5cf5acfa5aa95b785b65fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:53.510023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081793/manifest.json
observed a4472a427c5f39eff4751d538576bbea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:53.492812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081793/publication.md
observed f002e5cb0bd6886ba1da27ba8ac2862e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:53.475281ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081793/publication.txt
observed f20be9a4d3d598d97e56504e1019f3fd...
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.