OpenTechnical

OT-2026-000013647

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump 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-2026-000013647) never changes.

Identity and time

Publication numberOT-2026-000013647 · never reused
Internal UUID01a0ae6d-8de8-7c02-9176-13f89089084f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013647
StatusPUBLIC

Content hashes

Canonical textde486c1469bbd1fe54a345f924354231bbee5c5b5a201871cdacfd323451aa0a
Markdownf4eaf279f351bb8752ee08c63331d5801756932e955a8e89b83d66152346172b
PDF
Publication page1a527321053c32ef1c362b1639dd8747071c9848117c5c499a875cf570ede25f
Manifeste95807f058a0e28f98e115b944414f221bde642165b580de12f6fb09aee33823

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
SignatureJ6nrAtWJML9q3oEpMt7NPmoAYm8hMglhq42Cji8GkBkPRZF+CuGIXNzRgR71IIW70ksrYmUgDs30y9j8X88YAw==
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

2026-09-17T12:08:35.048926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013647
observed 1a527321053c32ef1c362b1639dd8747...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:35.028849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013647/manifest.json
observed e95807f058a0e28f98e115b944414f22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:35.011784ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013647/publication.md
observed f4eaf279f351bb8752ee08c63331d580...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:34.994217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013647/publication.txt
observed de486c1469bbd1fe54a345f924354231...
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.