OpenTechnical

OT-2026-000013807

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, two stage ejector, 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-2026-000013807) never changes.

Identity and time

Publication numberOT-2026-000013807 · never reused
Internal UUID01a0ae6d-8de9-7d1c-93ff-97a4644965a7 · 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-2026-000013807
StatusPUBLIC

Content hashes

Canonical text1f0f3e216ddfefac6eeaf09b9970f2edaf17809de5a38f3bf1af941e79d43dbf
Markdownc6deaa1c98713d6e64b0f586f59e4c211c236b96654471b2ff9294f476c2ce2a
PDF
Publication pagead658c662dee1baad73b8dfc829df078b1d79ed3380d230f7dd27d94171061fb
Manifest6963f71897d742c249ddcb908b34f8c09c38e6e88c02b2f95f00d12c683421d3

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
Signature8buNfGRANEKg31EOyXlOo7jD5V7DtJR/+EPFR+U+0SUNurnezBZ0VNDbi+IZj3PUMUVqYe+g/Xh9bINvuQZYCw==
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

2026-09-17T12:08:54.073922ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013807
observed ad658c662dee1baad73b8dfc829df078...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:54.055234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013807/manifest.json
observed 6963f71897d742c249ddcb908b34f8c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:54.035935ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013807/publication.md
observed c6deaa1c98713d6e64b0f586f59e4c21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:54.017525ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013807/publication.txt
observed 1f0f3e216ddfefac6eeaf09b9970f2ed...
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.