OpenTechnical

OT-2026-000042283

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, three stage ejector, manifold pressure sensor, pulsed blow-off before set-down, on a tool changer

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-2026-000042283) never changes.

Identity and time

Publication numberOT-2026-000042283 · never reused
Internal UUID01a0ae7a-5d73-7bc2-b00f-5531be95622f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042283
StatusPUBLIC

Content hashes

Canonical textfcdf5c877d27c9f8463c6fb51440d67e3bb1ccd51b33620294f5a1f576616a64
Markdownd4377d8b799e545a5f2456e9496a025bff7b4d048382ad0665b3aa7325424812
PDF
Publication page1acf669aacad73024e46f9c5ee8a1b97bde7d6cb4833480d61c9e0bdc7c20c89
Manifestb3fdc7fc569494b984557ce7ab760d185450716871c0f68cf8a0aa7a086b02db

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
SignatureRvWSrvsBVWkF8sf+Ags5ZGJpREQRxeDzwhn56So8KTVBLKaUAnI+AO+svEzRUVWmCqim9GvzddBH3/Be4mi2CA==
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

2026-09-17T11:15:58.563160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042283
observed 1acf669aacad73024e46f9c5ee8a1b97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:58.545229ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042283/manifest.json
observed b3fdc7fc569494b984557ce7ab760d18...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:58.526506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042283/publication.md
observed d4377d8b799e545a5f2456e9496a025b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:58.509124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042283/publication.txt
observed fcdf5c877d27c9f8463c6fb51440d67e...
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.