OpenTechnical

OT-2026-000076253

Publication integrity record

Four cup vacuum gripper, four zone face, three stage ejector, pressure sensor per zone, 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-2026-000076253) never changes.

Identity and time

Publication numberOT-2026-000076253 · never reused
Internal UUID01a0ae94-6a6f-7a55-baee-8ea2c1142001 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076253
StatusPUBLIC

Content hashes

Canonical text1ebb5fec151c6c563539fe278c5b2038c17b8b4db7ef11a7eb23465dfd91d818
Markdown1768f30da34cf2032784707e71dee8e5273e7701197d11b524501daaeef70bb2
PDF
Publication pagee70521034bdf4914b27ac1f7f57223d03209be032ab94959496a5a010dfcd17f
Manifestc41f43d49ee831460d49851ad35dac7a0816513801408a6e255761c7cef40589

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
SignatureAAi9DKm+NQn6Pia5wkiWQbxnzNNNy8ez8eqTv0RoSZhdONzPwR/0WtmMmKvfEKBGc73WSDOJwNI08aljh6HrAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:11:48.497576ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076253
observed e70521034bdf4914b27ac1f7f57223d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:48.478106ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076253/manifest.json
observed c41f43d49ee831460d49851ad35dac7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:48.048849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076253/publication.md
observed 1768f30da34cf2032784707e71dee8e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:48.031167ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076253/publication.txt
observed 1ebb5fec151c6c563539fe278c5b2038...
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.