OpenTechnical

OT-2026-000052313

Publication integrity record

Single cup vacuum gripper, two stage ejector, 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-2026-000052313) never changes.

Identity and time

Publication numberOT-2026-000052313 · never reused
Internal UUID01a0ae83-e791-7e00-8bbc-d4c349aa757d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:37:55.233643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000052313
StatusPUBLIC

Content hashes

Canonical text5dd6cdeec522393f4666e61db71709d8d6c1b43e08f39328e0a1edc2cebff12f
Markdown772d6dd255d93d2cbb83854ded060bd8041a68df870dbbef3d1bfa72539213b5
PDF
Publication page1928e0613fd2db134f1b5c06dd65a3c168a8e0c459d5695e37dc1cb2d2d5906d
Manifestf9f3ea45c4bb152600f34387c18db51cc1af156daf9f0b1c08bc327dbba2f901

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
SignatureSX+25dNfFsVa38qdrlhmzzBwY5DNGOLEe0teJ+QvpPeury7Zq99+sCn+fE0XYquQzQBbYO+I+8g9UMd5m13aAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:57:59.903481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052313
observed 1928e0613fd2db134f1b5c06dd65a3c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:59.887191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052313/manifest.json
observed f9f3ea45c4bb152600f34387c18db51c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:59.867625ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052313/publication.md
observed 772d6dd255d93d2cbb83854ded060bd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:59.849091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052313/publication.txt
observed 5dd6cdeec522393f4666e61db71709d8...
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.