OpenTechnical

OT-2026-000050989

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum 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-2026-000050989) never changes.

Identity and time

Publication numberOT-2026-000050989 · never reused
Internal UUID01a0ae82-c7b4-7609-a6e7-6a7ed6f02cca · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:41.548889Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050989
StatusPUBLIC

Content hashes

Canonical text2054317c3aba78f35912772c10589a68667cc321358e6dcf49dc6095fa45acea
Markdown105e619ab4e222324fb5a17f5a93b7c306251619e6e49386a29c57c0ad8bfc0c
PDF
Publication page6ab3a9985de165d7ec0917b8d0bf726c405d8104d7c4605d823ebe006c63a49f
Manifestda73b4eab2bd5faeb5dec3498c39c68af79d55d7b65ccd90490572f5ddbe9661

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
SignatureexbeTAYT+riPNeDKS2/+yD6s/sBZHFSZWP3v5mZ/+NiV26lluXp0bXRmZ5FHfXz5L8hzK3kvQ3N/oPGGYU6wAA==
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

2026-09-17T11:00:53.047284ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050989
observed 6ab3a9985de165d7ec0917b8d0bf726c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:53.029895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050989/manifest.json
observed da73b4eab2bd5faeb5dec3498c39c68a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:53.009360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050989/publication.md
observed 105e619ab4e222324fb5a17f5a93b7c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:52.987410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050989/publication.txt
observed 2054317c3aba78f35912772c10589a68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:52.985471ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050989
observed 6ab3a9985de165d7ec0917b8d0bf726c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:52.966142ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050989/manifest.json
observed da73b4eab2bd5faeb5dec3498c39c68a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:52.945876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050989/publication.md
observed 105e619ab4e222324fb5a17f5a93b7c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:52.928931ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050989/publication.txt
observed 2054317c3aba78f35912772c10589a68...
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.