OpenTechnical

OT-2026-000075893

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three stage ejector, pressure sensor per zone, 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-2026-000075893) never changes.

Identity and time

Publication numberOT-2026-000075893 · never reused
Internal UUID01a0ae94-29ff-7fa6-b8a6-f655c33a93ef · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075893
StatusPUBLIC

Content hashes

Canonical text57c8ca8a8bcc3dadb6847340a5e729c94d5c40fd75bf5bdd22f9936a916d2a77
Markdown44e20e6f4f3030ed198470621c7eff38b3abacfea2628992c737ba272b6ca638
PDF
Publication page0e36201f3ddbfefb8286c4b2a06e8d2c51d541db039a6239a855df25fbbc0600
Manifestfe00d53f323e500d5e7dc8d44e3a65f100b3b119529d587e1034070f6926fbbd

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
SignatureGuZrWmGPQDrRljXzb4MgFrWQqZ0Z41iTf7L2j7p0nW2aNJjhW7Ts9DfM//Bjued/jT+0qyKwVrmYn3n7jvFABw==
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

2026-09-17T10:14:41.063670ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075893
observed 0e36201f3ddbfefb8286c4b2a06e8d2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:41.040277ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075893/manifest.json
observed fe00d53f323e500d5e7dc8d44e3a65f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:41.021476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075893/publication.md
observed 44e20e6f4f3030ed198470621c7eff38...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:41.003944ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075893/publication.txt
observed 57c8ca8a8bcc3dadb6847340a5e729c9...
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.