OpenTechnical

OT-2026-000029411

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, three 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-2026-000029411) never changes.

Identity and time

Publication numberOT-2026-000029411 · never reused
Internal UUID01a0ae73-5e20-7ebe-a106-8ba0b003e534 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029411
StatusPUBLIC

Content hashes

Canonical text9186540f0dc978746cda290f2aa10f9a05479cfcee79be257f83dde1b19990bc
Markdown9bac7c14bf759471a2265621db5a9d7d870a2b99dc2a924e23321f313f32aec7
PDF
Publication page1c13f7c68c61773aa65be15a5250cae0e440d5430e7627c1702c43929d8c3a28
Manifestd54bddb6044c856caaa75e68ac7f5d2b1f354d919b140d77352c5ff71611d392

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
Signature0s+CcCpDUx+zO5dGdUwKheCqZVTvT2V22T/4BehweABB4cuHloOhmPZF0DLOlWmV3aVfnJeZ7YWGiTijtVkpDw==
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

2026-09-17T11:39:00.817933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029411
observed 1c13f7c68c61773aa65be15a5250cae0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:00.798277ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029411/manifest.json
observed d54bddb6044c856caaa75e68ac7f5d2b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:00.779045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029411/publication.md
observed 9bac7c14bf759471a2265621db5a9d7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:00.761012ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029411/publication.txt
observed 9186540f0dc978746cda290f2aa10f9a...
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.