OpenTechnical

OT-2026-000026815

Publication integrity record

Two bellows cup vacuum gripper, two zone face, plant vacuum fed, pulsed 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-2026-000026815) never changes.

Identity and time

Publication numberOT-2026-000026815 · never reused
Internal UUID01a0ae72-3451-737b-a6e5-4e4946cd9e6d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026815
StatusPUBLIC

Content hashes

Canonical textd1a161b60c203a79ed7639b537f97b5cb1ea77135deff63569d06cabc360f6f0
Markdownf7fc1f30db69f17b456c00fa962185db8b5b155db3697afde0ddfedee6c87118
PDF
Publication page37e05572058495b68e9354213217dd89f9dc1215a5c3c624bc28bf9cc7e9ff21
Manifest9e68fb45bcb4b82ef0ac00671fe2da400d853a4b50c6c29117013bfe37ed3585

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
Signature/pQcuW5n4jRlZy3DtsxOQZ9IYep56CPgX7+JBIvJNKQ+xXQuy3pIN2AT5cldwDXuhmf/G+1wr5sTDxeMQyONCw==
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

2026-09-17T11:43:23.768920ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026815
observed 37e05572058495b68e9354213217dd89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:23.752378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026815/manifest.json
observed 9e68fb45bcb4b82ef0ac00671fe2da40...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:23.735790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026815/publication.md
observed f7fc1f30db69f17b456c00fa962185db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:23.718469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026815/publication.txt
observed d1a161b60c203a79ed7639b537f97b5c...
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.