OpenTechnical

OT-2026-000015223

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, 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-2026-000015223) never changes.

Identity and time

Publication numberOT-2026-000015223 · never reused
Internal UUID01a0ae6d-ef48-7c0b-9895-1f723a112390 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015223
StatusPUBLIC

Content hashes

Canonical text69e34fdcbda5c20ecc836948a06fca1d74ffc83e196d82198fb629a1483684f4
Markdown92b5f566a4f473e5959dd6927f4dddb97f3377e006ebeb2ff678f8b956aa604b
PDF
Publication pagebdfbebae79992edfe44e12f66e0032ef86f6f7c872a0978f81fead12b28e8acb
Manifest5b2ed730268dc409ccada92784e70735832689486ed034e3117bd890ac062f66

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
SignatureoGxrEDoZEL87AbkXh8iqF0Va0Llra7x9B0dvP9A6ayEgQTS534OZCON/m432Af9pkrJBnVWjt/v6AnF3ZtK0Cg==
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

2026-09-17T12:05:51.792029ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015223
observed bdfbebae79992edfe44e12f66e0032ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:51.775661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015223/manifest.json
observed 5b2ed730268dc409ccada92784e70735...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:51.756694ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015223/publication.md
observed 92b5f566a4f473e5959dd6927f4dddb9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:51.738202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015223/publication.txt
observed 69e34fdcbda5c20ecc836948a06fca1d...
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.