OpenTechnical

OT-2026-000072690

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, single stage ejector, supply line pressure sensor, vented 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-2026-000072690) never changes.

Identity and time

Publication numberOT-2026-000072690 · never reused
Internal UUID01a0ae92-89d9-7cc6-90ae-449817c02061 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072690
StatusPUBLIC

Content hashes

Canonical text65e82b2c546b3c58bf77a2c05bf5704d0008c951ee6a59d28afb90c7451ac915
Markdown61d6480130eddbe63e0258ccd8d751d0bfea3f0d7524c1c8980438640ceab564
PDF
Publication page77d9734a4ab22e4c12540bc2f13b166a75478738e9cb3632ee2ec4160a089488
Manifesta7400e94216fecbb66e0c919c9745ef46cf26b0de56203e31c3f2e7ce0ff68b8

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
SignatureE8wSYdCO6Un8xZn9EncF3BFlbcRhrD4xN7sbxSS47mB8HDqCPisSOlmTyUjjIRbFkQvChVYNtG/64OMxvcU6DQ==
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

2026-09-17T10:22:34.736706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072690
observed 77d9734a4ab22e4c12540bc2f13b166a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:34.717379ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072690/manifest.json
observed a7400e94216fecbb66e0c919c9745ef4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:34.698646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072690/publication.md
observed 61d6480130eddbe63e0258ccd8d751d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:34.673127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072690/publication.txt
observed 65e82b2c546b3c58bf77a2c05bf5704d...
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.