OpenTechnical

OT-2026-000077485

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, pulsed blow-off before set-down

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-2026-000077485) never changes.

Identity and time

Publication numberOT-2026-000077485 · never reused
Internal UUID01a0ae94-f50a-7085-b013-69a27b6db94d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077485
StatusPUBLIC

Content hashes

Canonical text1f1615f06199d2a6450ee5c31536079dcccd7415d0c8a45502c09cc7d0989895
Markdownb44b8246f132aad0473335077300633c12588ed503d0be7d58d95b4ffcd02f53
PDF
Publication pagee9cdb40fa808b1940b38de25fceed0efec49a4d3f935c39052d33e797ebaba83
Manifest23e1581f5f1b2100ada529d7f6c4fd865d37da5cf02072dfee9e808821e86c6e

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
SignatureSt77vemuG8uHToGmJlGnyS3EUbZy4cJgTnjztEvVI+Ex4QN67dezmQOydewOFSWGNUWkX3HSjc7cxaXfzwkvBw==
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

2026-09-17T10:09:10.371085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077485
observed e9cdb40fa808b1940b38de25fceed0ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:10.351450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077485/manifest.json
observed 23e1581f5f1b2100ada529d7f6c4fd86...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:10.330295ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077485/publication.md
observed b44b8246f132aad0473335077300633c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:10.289337ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077485/publication.txt
observed 1f1615f06199d2a6450ee5c31536079d...
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.