OpenTechnical

OT-2026-000022813

Publication integrity record

Three cup vacuum gripper, three outlet manifold, plant vacuum fed, 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-2026-000022813) never changes.

Identity and time

Publication numberOT-2026-000022813 · never reused
Internal UUID01a0ae70-46ea-7751-b5f3-1e0c92828e7d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022813
StatusPUBLIC

Content hashes

Canonical text3ece8fcb44375ee8e8a261115c9fc8c23952328e52a1df0c4762daa68c20433e
Markdownefd41c93099c81a0d49c90233e89c22a344bd1f00f62bb042f10674026efdc84
PDF
Publication pagea2ec62a31e2408b46cea7694a89f717b53a70f66ed261ff94950a9bb739dd5aa
Manifest60b90e96ce0bf5ed8361d7e1ec9c0b1d768b033c8df9f354ae4d6142556bf80d

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
Signature3DmkgEghfzJ1xpDjvbxuDG8OnNtBDWfEh9PkzSSF0KZVfyogjDZerPAOJiTd20jR6ANNnBQW+8dM3euJfVjqDA==
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

2026-09-17T11:52:20.529185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022813
observed a2ec62a31e2408b46cea7694a89f717b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:20.511150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022813/manifest.json
observed 60b90e96ce0bf5ed8361d7e1ec9c0b1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:20.492378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022813/publication.md
observed efd41c93099c81a0d49c90233e89c22a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:20.472120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022813/publication.txt
observed 3ece8fcb44375ee8e8a261115c9fc8c2...
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.