OpenTechnical

OT-2026-000028499

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, 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-2026-000028499) never changes.

Identity and time

Publication numberOT-2026-000028499 · never reused
Internal UUID01a0ae72-e2f8-7a6d-8482-f3ceff78fe45 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028499
StatusPUBLIC

Content hashes

Canonical text8612e55a7660f7bf3c6002282ced15437bfc8551fed4293c1ca421d436ff15ff
Markdown65e1d0f04b6cc746e0ca072f76bf38eecd528c074dea53c96471261fea1d2028
PDF
Publication page29240df8a4a099af12e261a1249a3881228c7fa31d69cd34573702eccf280213
Manifestc5ac5ed578f63d8f6207afccfda48d9183af05e6cca9375d852cc9343273ed97

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
SignaturegPQN5gt7BTDD7Qbv1LYWdJBY9RxstbrJVWEdzVNFEZuuXmQo0p31RbcTcBUIKiviAjbcPBh/Qj8MZk2EzKXABA==
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

2026-09-17T11:40:45.661998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028499
observed 29240df8a4a099af12e261a1249a3881...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:45.642997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028499/manifest.json
observed c5ac5ed578f63d8f6207afccfda48d91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:45.624884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028499/publication.md
observed 65e1d0f04b6cc746e0ca072f76bf38ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:45.606508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028499/publication.txt
observed 8612e55a7660f7bf3c6002282ced1543...
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.