OpenTechnical

OT-2026-000009904

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, vented after 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-2026-000009904) never changes.

Identity and time

Publication numberOT-2026-000009904 · never reused
Internal UUID01a0ae6b-cb78-740b-a9ce-c917650a2234 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:11:35.184400Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000009904
StatusPUBLIC

Content hashes

Canonical text87bc4b9cd55896509c63d64f61c20f475ca7453fbed3bf4f75d2a5972b498564
Markdown2d53be9e07aed567403fe5452842d7b804fc49733a7cfa4e78a82e9fadc4b96d
PDF
Publication page8c32aaf357746495a4567195d5a83bbe772f8b36854d12a7708aa3430b04411c
Manifestf4728e15bd2fddcb4065e673aa3aa1be8bf9ad9cc99ee319b544a20f724dc349

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
Signature83EW4vIHsvwunRr0cgu/9a9CoxLiWfcyy/m3+S2K3fNeQqhJlCJDbk+A3Y8/cEeG/Wkik5p4GJw289r/NU+rBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:15:55.056431ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009904
observed 8c32aaf357746495a4567195d5a83bbe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:15:55.035064ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009904/manifest.json
observed f4728e15bd2fddcb4065e673aa3aa1be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:15:55.017387ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009904/publication.md
observed 2d53be9e07aed567403fe5452842d7b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:15:54.997603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009904/publication.txt
observed 87bc4b9cd55896509c63d64f61c20f47...
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.