OpenTechnical

OT-2026-000090464

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump fed, pressure sensor per zone, 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-2026-000090464) never changes.

Identity and time

Publication numberOT-2026-000090464 · never reused
Internal UUID01a0ae9c-7f2e-724e-a737-48fa40c1fb48 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090464
StatusPUBLIC

Content hashes

Canonical text01d43106464decd44109eee2cf526ac217e7f83225531101c36c8aa73ae1e7bf
Markdown65d88ba58fc60880ffe9771d08f54023bd6c8e04721320465bbd57556f4c76d4
PDF
Publication page9b5c32b45542aa60bf81fcdaf8c2282fb0964d9816b7159e2a0545c6cf5a8332
Manifestcf33d632ad5b3f0dd64e8bc10040c597ebc27b153937fdf9c1e214bfed014d16

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
SignatureTpXTHWLLegmxUpHvmdG+X51WLgamrtYbDYL7wgP6Lejc6hNd+8BcYecdbwXtLkZ5KXcVFVEmcx64DUbbiiMfAA==
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

2026-09-17T09:44:35.366238ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090464
observed 9b5c32b45542aa60bf81fcdaf8c2282f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:35.348923ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090464/manifest.json
observed cf33d632ad5b3f0dd64e8bc10040c597...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:35.333147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090464/publication.md
observed 65d88ba58fc60880ffe9771d08f54023...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:35.315916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090464/publication.txt
observed 01d43106464decd44109eee2cf526ac2...
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.