OpenTechnical

OT-2026-000019281

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, 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-2026-000019281) never changes.

Identity and time

Publication numberOT-2026-000019281 · never reused
Internal UUID01a0ae6e-f392-7719-94e9-77d2aba64fab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019281
StatusPUBLIC

Content hashes

Canonical textee408c32e142ff64c12525924a07cc8991690fdfcf8e77285b4781cf0a372129
Markdown34ab5a7894eae13a550297e8951416227d6cf4e308fc683aa5e103a2bc6913c4
PDF
Publication page3778399fd02489f671ba03e88fdeb3573cc57925c4e67194b14a7225cd90b42d
Manifest960256c47ef55cc1c075c20830cc797efc709da141dbe4fb5655603286954ea5

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
SignatureTDKDkdsXLry2urafi1zrgTNaClBoe9YnpfhKa6k3YCX36Tr886pDwN65OW9IRzzWSzZFlH0+Dzu5s8BNE0meAA==
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

2026-09-17T11:58:35.186815ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019281
observed 3778399fd02489f671ba03e88fdeb357...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:35.169550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019281/manifest.json
observed 960256c47ef55cc1c075c20830cc797e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:35.152261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019281/publication.md
observed 34ab5a7894eae13a550297e895141622...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:35.133486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019281/publication.txt
observed ee408c32e142ff64c12525924a07cc89...
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.