OpenTechnical

OT-2026-000020551

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, 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-2026-000020551) never changes.

Identity and time

Publication numberOT-2026-000020551 · never reused
Internal UUID01a0ae6f-437c-7197-90cc-23c483e8c3b0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020551
StatusPUBLIC

Content hashes

Canonical textd37b87ca4a513b3fd53eac0894239ee83707d97dbd5e16a95fb20e4366282e28
Markdown96d4f0241884e35e172bcfde5af81090fd4fe34674258a3ef9ebde1a9f7c026d
PDF
Publication page2cddfc73a304d774a7313fae91b7fe326e5a6da8158dd73288e12da9753d05ce
Manifest5c31b870db00401e0656f1d257e39c296d7ca985efede133d4d4bb39dcd07a1d

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
SignatureCQQXZX2JixGTByTcknGuVmfilQtSgDnnX+4NeQxmngwXCb1JAcimBggmUlXy4yF5GYPccATxrtsFXTzeh0rBAQ==
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

2026-09-17T12:00:32.290412ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020551
observed 2cddfc73a304d774a7313fae91b7fe32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:32.270251ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020551/manifest.json
observed 5c31b870db00401e0656f1d257e39c29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:32.252114ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020551/publication.md
observed 96d4f0241884e35e172bcfde5af81090...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:32.233637ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020551/publication.txt
observed d37b87ca4a513b3fd53eac0894239ee8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:34.891158ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020551
observed 2cddfc73a304d774a7313fae91b7fe32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:34.874044ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020551/manifest.json
observed 5c31b870db00401e0656f1d257e39c29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:34.858072ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020551/publication.md
observed 96d4f0241884e35e172bcfde5af81090...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:34.836151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020551/publication.txt
observed d37b87ca4a513b3fd53eac0894239ee8...
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.