OpenTechnical

OT-2026-000013953

Publication integrity record

Single cup vacuum gripper, single stage ejector, 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-2026-000013953) never changes.

Identity and time

Publication numberOT-2026-000013953 · never reused
Internal UUID01a0ae6d-8dea-7bd9-829f-debcd224ef30 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013953
StatusPUBLIC

Content hashes

Canonical textd15b82361ddbf9b29133a69852aaa4d92cbdffe6fc7c4566c9d93026f8136f90
Markdownb853795b5f807420de482903028d028bcc2a2c067204fd49a16c3a1c91e9ab26
PDF
Publication pagece34a4c15de275cfe74c9a8132297c7dc7323bfe54dd0c0686206344ee049699
Manifest42762b756ca6b09cb2fe0440392fd4b429aad53ad7b5af39b16f0c229aeee318

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
Signature65KWa41bTGCYEszkj0AE+e7FEnpj+x6TN03AAQA4+Cgv+7q19zL+LA2QCEtf56iw6ElZVyo4qrc0Z0UEsspzCg==
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

2026-09-17T12:09:09.357754ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013953
observed ce34a4c15de275cfe74c9a8132297c7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:09.334434ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013953/manifest.json
observed 42762b756ca6b09cb2fe0440392fd4b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:09.310031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013953/publication.md
observed b853795b5f807420de482903028d028b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:09.287421ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013953/publication.txt
observed d15b82361ddbf9b29133a69852aaa4d9...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent