OpenTechnical

OT-2026-000087880

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, single stage ejector, supply line pressure sensor, sustained 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-2026-000087880) never changes.

Identity and time

Publication numberOT-2026-000087880 · never reused
Internal UUID01a0ae9b-1aa5-79cf-8480-ce861784e109 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087880
StatusPUBLIC

Content hashes

Canonical text1e81121d326f1eb4a26d1d8f6b8cfdb93e236a97ad438ae87e244fd6f5e7e2a0
Markdown63962644280ae3f605e0f805bb827abd9398a5520855be712cfc9ad325c887b4
PDF
Publication paged2f418d06b8a7d03aca27ab8cd718cfb6df0ff98dc5f574c9e60847ddba4d9b2
Manifestdae7795b4938425ba1ce80c922a065e8199864ee4a07a533969f9f2c88858157

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
Signaturehs4Sz0rN/wyoAjlcoMHD5eFbfCO+50FpXshFP7uFaE9nXmByS7HHq1inWImKvYKio0DV4Cd5Zmt35DvQd2UXCQ==
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

2026-09-17T09:49:08.757707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087880
observed d2f418d06b8a7d03aca27ab8cd718cfb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:08.738467ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087880/manifest.json
observed dae7795b4938425ba1ce80c922a065e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:08.717815ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087880/publication.md
observed 63962644280ae3f605e0f805bb827abd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:08.698291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087880/publication.txt
observed 1e81121d326f1eb4a26d1d8f6b8cfdb9...
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.