OpenTechnical

OT-2026-000028240

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, sustained blow-off before set-down

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-2026-000028240) never changes.

Identity and time

Publication numberOT-2026-000028240 · never reused
Internal UUID01a0ae72-a521-73d1-b22a-0ce16a742ab9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028240
StatusPUBLIC

Content hashes

Canonical text8017c6ed9d47b27805c64d54d00c3da3d8b1e3de41e49a1ec1fcac7f8cdbf70c
Markdownb2344acd8ad4e63adc9d50e3479023bc3f3cd06ddbd30544e5d12c25891bcc30
PDF
Publication page260d489ae62226b122e512236c875cb7e0f205e2a4ba8b4684fe89a46ec0d3d4
Manifest117448fba42de3d827bd06bfbb5a21ac24e556701808d13ca1e4690c4400aa19

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
SignatureLnAqulL5/GGOgv2iOs7UY+ycJXQANxDQzIwHljiJ1gFr6yLGp86DgHosOVFHnGSP/TV4vdaKSlhR92LbBBiADg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:42:36.454222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028240
observed 260d489ae62226b122e512236c875cb7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:36.437913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028240/manifest.json
observed 117448fba42de3d827bd06bfbb5a21ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:36.421319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028240/publication.md
observed b2344acd8ad4e63adc9d50e3479023bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:36.402837ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028240/publication.txt
observed 8017c6ed9d47b27805c64d54d00c3da3...
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.