OpenTechnical

OT-2026-000020403

Publication integrity record

Two cup vacuum gripper, two 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-2026-000020403) never changes.

Identity and time

Publication numberOT-2026-000020403 · never reused
Internal UUID01a0ae6f-437b-7ef3-bf8d-b189484573a6 · 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-2026-000020403
StatusPUBLIC

Content hashes

Canonical text8bdc987af858738525cfa9937695640de588d373988f3d5d6cbe04b2a731b270
Markdownf2a5a54b89e244a9bff0d9e5bf8e20195289e565515eeddbdad9e3ed6e644802
PDF
Publication paged61e6e728a436128320ef21c00ae85eb32ae6f0ca7cb16d67aa0c16e52f9f0ee
Manifest6d6d33cf54dfca8f18ce97eb90b3163e6950c5c1f12369fbec35f603f7e464ba

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
Signaturef0qV4bCWN8gIBUqM/q0CW9A4KDubaaDMS1cdNCmFZRi6SWQurWoYEZQ43myawCFbiO39SijWYN8ywpfpriu0AA==
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

2026-09-17T12:00:17.991343ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020403
observed d61e6e728a436128320ef21c00ae85eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:17.972452ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020403/manifest.json
observed 6d6d33cf54dfca8f18ce97eb90b3163e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:17.954204ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020403/publication.md
observed f2a5a54b89e244a9bff0d9e5bf8e2019...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:17.935843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020403/publication.txt
observed 8bdc987af858738525cfa9937695640d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:22.746062ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020403
observed d61e6e728a436128320ef21c00ae85eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:22.728311ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020403/manifest.json
observed 6d6d33cf54dfca8f18ce97eb90b3163e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:22.709316ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020403/publication.md
observed f2a5a54b89e244a9bff0d9e5bf8e2019...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:22.690872ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020403/publication.txt
observed 8bdc987af858738525cfa9937695640d...
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.