OpenTechnical

OT-2026-000087089

Publication integrity record

Four bellows 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-2026-000087089) never changes.

Identity and time

Publication numberOT-2026-000087089 · never reused
Internal UUID01a0ae9a-9f2d-7dcd-81b2-78d06faf16f8 · 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-2026-000087089
StatusPUBLIC

Content hashes

Canonical textb910319e97eb3b74be03e3523e370b339a8a7f9c3942af63de125e0573683480
Markdown288172ad773eb487369ca17ddae853a2d2524efa96d3ee717d2dd0082fb46bd5
PDF
Publication pagee3640a6c8481a53e9e34f4bee086ff9c76afa5352b0a529089af53c8ecca488a
Manifestc38c1d2ad06d3bf89e797e751153d5d1bb7a41328f237ae6460f15fbaf80e0f8

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
SignatureK2/KT/SpficslE+0acrSupiC/CxP2+WWcU7yZawnOkDtrUFTxRIhhLmysKMurUWmFJggIqvN/WBEJdJ1mxh0Dg==
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

2026-09-17T09:51:20.854319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087089
observed e3640a6c8481a53e9e34f4bee086ff9c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:20.836232ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087089/manifest.json
observed c38c1d2ad06d3bf89e797e751153d5d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:20.819267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087089/publication.md
observed 288172ad773eb487369ca17ddae853a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:20.802844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087089/publication.txt
observed b910319e97eb3b74be03e3523e370b33...
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.