OpenTechnical

OT-2026-000019359

Publication integrity record

Two bellows cup vacuum gripper, two zone face, plant vacuum fed, 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-2026-000019359) never changes.

Identity and time

Publication numberOT-2026-000019359 · never reused
Internal UUID01a0ae6e-f392-70f2-98a0-85dbaf264cef · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019359
StatusPUBLIC

Content hashes

Canonical texteedea1650f3f57cbade55d1e73394ff200e12775ecabdaec56436b9acb02e2d2
Markdown67b32387b4bd7fcfff86039e74c11845f6125f962245669610f6c050fa320025
PDF
Publication page3097769d4863c30ed6c4f188ce4596cd5994985eb5de52e3af64828ad38b6d89
Manifestcdb7559b9ec761977c95cdea1674fe37bd00e853e9e10133a3c616ff8c1ea7ee

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
SignatureYrTp4B9osV13yJFE8+f6OCaNeaakcLb568Emqpf1zC35+SWrWkWiBIDgRRSk7tXzliSMP8/sJO8+IUDqvmreCQ==
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

2026-09-17T11:58:44.204360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019359
observed 3097769d4863c30ed6c4f188ce4596cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:44.186703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019359/manifest.json
observed cdb7559b9ec761977c95cdea1674fe37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:44.169650ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019359/publication.md
observed 67b32387b4bd7fcfff86039e74c11845...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:44.150503ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019359/publication.txt
observed eedea1650f3f57cbade55d1e73394ff2...
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.