OpenTechnical

OT-2026-000071473

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, three stage ejector, supply line pressure sensor, 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-2026-000071473) never changes.

Identity and time

Publication numberOT-2026-000071473 · never reused
Internal UUID01a0ae91-e0ed-77c8-9338-801c6bb01b98 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071473
StatusPUBLIC

Content hashes

Canonical text35ca3ae1e1d30f993e3f92cf5dc4cda4c63cbf0ca0543152cb030df2ba1ab4ed
Markdown17f764e06eb111190b6c12e8574a2bbd9c22bb0fc22df451c6830b604617da69
PDF
Publication page09d8b009c939b86e5005c20104cd1bb63c7eb23de041890adac878ddd6142abe
Manifest30486c05193cedfecbdc040c462c5992a65cae68b33abcd630ebdaf8eaa73ba6

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
SignatureDDh8OP94sMWYzy3HhcU0OMmDlFQGWneqeHBuxD3wDWy3H8c1dZVvylHWOetAklF/0DjAWysfEV0LEOBjoiFiAQ==
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

2026-09-17T10:25:06.853486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071473
observed 09d8b009c939b86e5005c20104cd1bb6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:06.835308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071473/manifest.json
observed 30486c05193cedfecbdc040c462c5992...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:06.817666ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071473/publication.md
observed 17f764e06eb111190b6c12e8574a2bbd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:06.800164ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071473/publication.txt
observed 35ca3ae1e1d30f993e3f92cf5dc4cda4...
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.