OpenTechnical

OT-2026-000076633

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump fed, 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-2026-000076633) never changes.

Identity and time

Publication numberOT-2026-000076633 · never reused
Internal UUID01a0ae94-b06e-7c5c-bdf9-e8d2971404fe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076633
StatusPUBLIC

Content hashes

Canonical text86c52b1393a59c64a765dfe0b22eedd48f5e779c76acc9433d28c02dcfe257b8
Markdown68138da27e63a0c7921fcbb15a760dba14a5b8ba7815cdb2bd3e53611b466701
PDF
Publication page5fb19f2e1ff2a069c03bae59f75fc89330136ecff80a58e0b86428c8de2f3227
Manifestd8d13057de5ee4cd3d6c3cb54b45821c073109cf286ec250750e950ec570f581

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
SignatureZNXqidNfzFumg3EUVgzsxl0V5zkgz+7gp6Mi0wJveyZb5elS7fmVRNH1vHSOEfERgJZGi7GS70YvA0nYLiP8DQ==
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

2026-09-17T10:09:22.130783ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076633
observed 5fb19f2e1ff2a069c03bae59f75fc893...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:22.111827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076633/manifest.json
observed d8d13057de5ee4cd3d6c3cb54b45821c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:22.091647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076633/publication.md
observed 68138da27e63a0c7921fcbb15a760dba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:22.071946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076633/publication.txt
observed 86c52b1393a59c64a765dfe0b22eedd4...
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.