OpenTechnical

OT-2026-000062193

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented after 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-2026-000062193) never changes.

Identity and time

Publication numberOT-2026-000062193 · never reused
Internal UUID01a0ae8c-0abd-777b-ad9d-0b24bc73c207 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:48.542263Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062193
StatusPUBLIC

Content hashes

Canonical text5f051f3582937d84e23222df29cf6a4b665fd4ee3838a0a88b29cbb9c2d9622d
Markdown46041ee46443e74ab78a0431b5b647e24572cf420a190809e1924286d0a62b0a
PDF
Publication page068e1181e9666330111c032147248013c9a8eb937c9f564dd920b8e40a70e812
Manifestf4991e7882b6d15e24db4daeccd1a4e41b98b122456035a11f0466c34fb69cb4

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
Signature8qCeTFgUoHxf1mzb7fO2nQhgnWOYwb8Wp6JU7YaOM9J36r5Sp9ftphR2hM5xE2HmIvhfrPmzNZjKSx1oNq+kDg==
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

2026-09-17T12:42:45.092027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062193
observed 068e1181e9666330111c032147248013...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:42:44.783136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062193/manifest.json
observed f4991e7882b6d15e24db4daeccd1a4e4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:42:44.337324ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062193/publication.md
observed 46041ee46443e74ab78a0431b5b647e2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:42:43.900848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062193/publication.txt
observed 5f051f3582937d84e23222df29cf6a4b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T10:39:27.399292ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062193
observed 068e1181e9666330111c032147248013...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:27.380971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062193/manifest.json
observed f4991e7882b6d15e24db4daeccd1a4e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:27.364524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062193/publication.md
observed 46041ee46443e74ab78a0431b5b647e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:27.346427ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062193/publication.txt
observed 5f051f3582937d84e23222df29cf6a4b...
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.