OpenTechnical

OT-2026-000020259

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump fed, pulsed blow-off before set-down

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-2026-000020259) never changes.

Identity and time

Publication numberOT-2026-000020259 · never reused
Internal UUID01a0ae6f-437a-7e0b-9a35-85a92a45c254 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020259
StatusPUBLIC

Content hashes

Canonical text7862aca25c91e81c69204c54c15602fce9a971ac3f7d3ea78a957dcfefbf0723
Markdowndb65d1c388d0583ea9c54f010ce6d9c532f6f96ad79e84ac2b4da4eab3c7c24c
PDF
Publication pagecb162d39a92a6a42f3d9d02065aa3f22af0d2b14f0b7a010071476890aed05d5
Manifest5ff5d0ade2835c88d210b4b23c073bf09a838a3a4e691134939cca72e0fde84b

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
SignatureEfAZvId7kyjRmcmnASCotQtfoCsDNgxfpUBvdW1ikA3j2tz63Wyto71sW6RwBwKQXPVKdoHuJ/rUM6zi9qXrAA==
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

2026-09-17T11:56:36.316186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020259
observed cb162d39a92a6a42f3d9d02065aa3f22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:36.296416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020259/manifest.json
observed 5ff5d0ade2835c88d210b4b23c073bf0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:36.277701ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020259/publication.md
observed db65d1c388d0583ea9c54f010ce6d9c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:36.260028ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020259/publication.txt
observed 7862aca25c91e81c69204c54c15602fc...
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.