OpenTechnical

OT-2026-000087083

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-2026-000087083) never changes.

Identity and time

Publication numberOT-2026-000087083 · never reused
Internal UUID01a0ae9a-9f2d-7ef2-81f7-ef7777603fc2 · 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-2026-000087083
StatusPUBLIC

Content hashes

Canonical text159ed93ef00c30ca3dd03913c3493a41cd679e815cfa428ae029b38df0e4de70
Markdown408914e8c6586ea28894bff1a3c994033f0029982b42aebf7a2fe533bc689c4c
PDF
Publication pagea64d99a95fcc88e9d8d6c3fff07edca60f1d73ce4dfee1bc8c23f6bc0c3ff548
Manifest4d7ae5796c3eab72d110a51d719b7fc78c3c063b788ca96e223b546aae2c737f

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
SignaturexYJcObcHF9deykV4KvorTGahHJj01S3C4wkPtOZ4ZtJJB2CZ51dmF0+4giL8c7SABb7RKEzx5EawXaEEv8JBBA==
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

2026-09-17T09:51:20.436971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087083
observed a64d99a95fcc88e9d8d6c3fff07edca6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:20.420573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087083/manifest.json
observed 4d7ae5796c3eab72d110a51d719b7fc7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:20.403693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087083/publication.md
observed 408914e8c6586ea28894bff1a3c99403...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:20.387864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087083/publication.txt
observed 159ed93ef00c30ca3dd03913c3493a41...
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.