OpenTechnical

OT-2026-000071032

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, vented 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-2026-000071032) never changes.

Identity and time

Publication numberOT-2026-000071032 · never reused
Internal UUID01a0ae91-8c2e-743f-9f59-48daa2388b5e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:49.344646Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071032
StatusPUBLIC

Content hashes

Canonical text7ac651714bd8ac055d8cdd69f58d41cbc16f80a2df989fd40f39b7abd3ce372c
Markdownff361cc50df7d367295cdf18e465c32bc2d3149f297f53af913bf934f49c3e3a
PDF
Publication page4c1ceb64e15bda529a524de60cc48a39a8a28e7f9ee2c44171b600bae645d7a9
Manifest20e1cbe8f51097966a847f2ce745bdc6f64d52fa096137ecc0a5385b705d4b7e

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
SignatureBjACnvXZH+ubtXMPbzjq1Sj0iEyJQD4k8Uze4bgA9Z3lIltQlQxGljWIDVWSua9M2zf6DrkS9/Jzwbs3go35Cg==
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

2026-09-17T10:25:53.229958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071032
observed 4c1ceb64e15bda529a524de60cc48a39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:53.213958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071032/manifest.json
observed 20e1cbe8f51097966a847f2ce745bdc6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:53.196906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071032/publication.md
observed ff361cc50df7d367295cdf18e465c32b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:53.180113ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071032/publication.txt
observed 7ac651714bd8ac055d8cdd69f58d41cb...
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.