OpenTechnical

OT-2026-000007402

Publication integrity record

Vacuum cup gripper, plant vacuum fed, pressure verified, vented after set down, silicone cups

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-2026-000007402) never changes.

Identity and time

Publication numberOT-2026-000007402 · never reused
Internal UUID01a0a97d-7b30-7046-816b-d8b7b5ccf30c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:12:48.179373Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007402
StatusPUBLIC

Content hashes

Canonical textf76bb194111b1b235ae1ce09259bcab882467f249cf82b739e4836d2c702a725
Markdowndf54f155d8cc4d733469eab41fa2ab621018fbe816b520c0271375c0c511e594
PDF
Publication page9b7c99b328fed6752e626ed6ac7423ac33dc93bd9a77f4e9ed8dbc03c962e2dc
Manifestdafac3052e9438c44be4d2ffbcd63fc313d903ab0272f3145cab3b8600dab07d

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
SignaturepV2NciR6IlwvozWlnwO76F8Fp2k3vTxtZ6wfA3CVR1cBN6clD3XLXOSMi63jSAM2B+JHea4lDltl1BPalQMVBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T09:20:07.404446ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007402
observed 9b7c99b328fed6752e626ed6ac7423ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:07.391470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007402/manifest.json
observed dafac3052e9438c44be4d2ffbcd63fc3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:07.377400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007402/publication.md
observed df54f155d8cc4d733469eab41fa2ab62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:07.362643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007402/publication.txt
observed f76bb194111b1b235ae1ce09259bcab8...
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.