OpenTechnical

OT-2026-000084495

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, 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-2026-000084495) never changes.

Identity and time

Publication numberOT-2026-000084495 · never reused
Internal UUID01a0ae98-e259-7eef-ae5f-70727e8fdcac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:50.163111Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084495
StatusPUBLIC

Content hashes

Canonical textfd3c7ac024ea572d15b8a66f5d37decf28df389939c6a236cde4f7b6081c7eb2
Markdown3dd99d5fe001d2bf9152692e28313992366bce19bfaba8e1966ef3f718e64159
PDF
Publication paged20591564f4f15d9968d1b97c914e684f7103a3bf542d648420bafe3a6c8d90b
Manifest28fb8ba4808d6cc88970fb60de7952a3288c97f34fdd1e8827534bf196ce83c5

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
Signature1VzR8NtEJMnHhwa/e9WZ50MPSVHqRI+8hSuzmMML/Ujm729a/dt1xgQ+VCa+7+cNJvPo2XRqeBTzZYNjExjDAQ==
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

2026-09-17T09:55:22.123937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084495
observed d20591564f4f15d9968d1b97c914e684...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:22.101008ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084495/manifest.json
observed 28fb8ba4808d6cc88970fb60de7952a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:22.082689ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084495/publication.md
observed 3dd99d5fe001d2bf9152692e28313992...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:21.980315ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084495/publication.txt
observed fd3c7ac024ea572d15b8a66f5d37decf...
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.