OpenTechnical

OT-2026-000028147

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, 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-2026-000028147) never changes.

Identity and time

Publication numberOT-2026-000028147 · never reused
Internal UUID01a0ae72-a520-7a5e-9d16-fcd333128b11 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028147
StatusPUBLIC

Content hashes

Canonical text30066ca586e23436af834dfca3688d9a65c1f95ae1c643c0c5cff94d06bfd316
Markdownab812396c04ea2d0bb9e4d6cfc77132318a9d00d0a1c7269556cbbff9cf45a41
PDF
Publication page4d7fd9dcdae2baca764f04ff4b4e877645d0830b98bf8b04d3e72f1ee5aca4a6
Manifeste5ef39bdc6597b62aae2a3e05442eb3a1baf6b66bba168633ff47b88e370aed9

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
SignaturedELOtHIuUK/eSmgrYJILuP9Ll/uNKQTTKx6EsCm00YKHW9YYdYCEiaCzn22b9Gr4qP6C/hPIRi4bWwsRVOc/Bw==
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

2026-09-17T11:42:03.381792ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028147
observed 4d7fd9dcdae2baca764f04ff4b4e8776...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:03.365337ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028147/manifest.json
observed e5ef39bdc6597b62aae2a3e05442eb3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:03.346869ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028147/publication.md
observed ab812396c04ea2d0bb9e4d6cfc771323...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:03.328312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028147/publication.txt
observed 30066ca586e23436af834dfca3688d9a...
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.