OpenTechnical

OT-2026-000089061

Publication integrity record

Two bellows cup vacuum gripper, two zone face, six outlet manifold, pump fed, supply line pressure sensor, 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-2026-000089061) never changes.

Identity and time

Publication numberOT-2026-000089061 · never reused
Internal UUID01a0ae9b-daff-7820-91ef-29f1839dd793 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089061
StatusPUBLIC

Content hashes

Canonical text8c661335f5c1452beb3f9921b58a1e36f1ff71908e03543709580cf5d023e4ef
Markdown6f5889844a71fa5f09566831c77cf0446abb74bb9afdbee5c74777f4b3a2e8e1
PDF
Publication page57c8c58ffe0d138abd2cf61bcb7a42127c1f3aa6e126899fdbff0ba28687aff8
Manifest1ccdd3427c04295eec0ae736a973246943f8c5c7353a78344019294221f48660

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
SignatureQdmVyCNajFOZVs0XSVm0N6ODBcJgSgOuSLpkOnSrpZoX+HQI39/lwzd+Sa88hesUfNww7OhoDvfgNcS/mkQADw==
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

2026-09-17T09:46:57.649920ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089061
observed 57c8c58ffe0d138abd2cf61bcb7a4212...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:57.631959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089061/manifest.json
observed 1ccdd3427c04295eec0ae736a9732469...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:57.612997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089061/publication.md
observed 6f5889844a71fa5f09566831c77cf044...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:57.595882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089061/publication.txt
observed 8c661335f5c1452beb3f9921b58a1e36...
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.