OpenTechnical

OT-2026-000081589

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, pump 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-2026-000081589) never changes.

Identity and time

Publication numberOT-2026-000081589 · never reused
Internal UUID01a0ae97-0f71-7dea-970e-ad605234cb7e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081589
StatusPUBLIC

Content hashes

Canonical text56d0608d2e123bcba52fda0e323f710672d6597b0df1a0c6f866d67ae2e3b984
Markdown6a82e025012f8cdffc6fbdd5ce8a09951fc2f68ee3316bde0ac9ca94d1d76424
PDF
Publication page6f118044366fe69b6993eeee2632d0c4edfd1d71d007a713d538925d4826f762
Manifestb74e326cecf6cfa7348c7a9e4906980a1a018365bbde9916797ca22febe68942

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
SignaturefUtt+s1jVcz167VwIL9CQH77cb/DMPjaOFzzlWlxB8Mw440U5C4ggTSvt5EOWPPWvh/bv4DUhf8N1EdKLpEgBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:59:37.481947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081589
observed 6f118044366fe69b6993eeee2632d0c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:37.465157ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081589/manifest.json
observed b74e326cecf6cfa7348c7a9e4906980a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:37.447640ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081589/publication.md
observed 6a82e025012f8cdffc6fbdd5ce8a0995...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:37.431128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081589/publication.txt
observed 56d0608d2e123bcba52fda0e323f7106...
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.