OpenTechnical

OT-2026-000087100

Publication integrity record

Four cup vacuum gripper, four zone face, four 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-2026-000087100) never changes.

Identity and time

Publication numberOT-2026-000087100 · never reused
Internal UUID01a0ae9a-9f2d-70dd-ac2c-6f5178e1614c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:44.027043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087100
StatusPUBLIC

Content hashes

Canonical textb6524ec0275d82db105dab43015d906d48c89c0dca1dd48bd95e9763a26c8ce5
Markdownceab79160c130ed0c2f6dc967cc566e83331fef8617d6565bab7fb4eb4b600e4
PDF
Publication pagec256353f76f4c9187eafd2e69163948dfce0af03103679b1a203761196c13d15
Manifest192da1d7006692be1f4980a85ada7eb1e8ecddb4db71cdf28a80734fb99dbb19

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
SignatureeRAo9EDdNlLC8Kn/TGN98t4uLkYZsOHIbn44Jl0RXs+UBJV6gULEHAZdgTvfEnaXsg9mUtwFarLFskPdCIMSBQ==
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

2026-09-17T09:51:21.616232ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087100
observed c256353f76f4c9187eafd2e69163948d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:21.599352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087100/manifest.json
observed 192da1d7006692be1f4980a85ada7eb1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:21.583168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087100/publication.md
observed ceab79160c130ed0c2f6dc967cc566e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:21.565774ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087100/publication.txt
observed b6524ec0275d82db105dab43015d906d...
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.