OpenTechnical

OT-2026-000026628

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, sustained 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-2026-000026628) never changes.

Identity and time

Publication numberOT-2026-000026628 · never reused
Internal UUID01a0ae71-f4aa-72f9-b2c9-5d0abc306671 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026628
StatusPUBLIC

Content hashes

Canonical text081c173ee0c1ddba12a97b3fccf1e48e40431dd4cd7d727f4b22b76e251618e9
Markdown86d64085da6ae649d85498d5e70acd9da45a0ef06b9d32ae63d810b672b1097c
PDF
Publication page36437abdc1b9e874b008358caac7d24d95cb6e27d4a4c8063916bddefa2c72e3
Manifest4f646532a783d49decaf5917a4d98ff8d3767c2d1868129c02a024101ace4164

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
SignatureyiS6wN8s/VxTZs19ZWoLP/4qDS/c2dPYZqpwlWislHLgcpcDSaoy7dAkTz76cMP6splSj6Uy9dHqOcWKirr6Cg==
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

2026-09-17T11:45:42.212065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026628
observed 36437abdc1b9e874b008358caac7d24d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:42.189550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026628/manifest.json
observed 4f646532a783d49decaf5917a4d98ff8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:42.169472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026628/publication.md
observed 86d64085da6ae649d85498d5e70acd9d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:42.147464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026628/publication.txt
observed 081c173ee0c1ddba12a97b3fccf1e48e...
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.