OpenTechnical

OT-2026-000091076

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, single stage ejector, 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-2026-000091076) never changes.

Identity and time

Publication numberOT-2026-000091076 · never reused
Internal UUID01a0ae9c-c012-7330-96e1-2f04f24429b5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091076
StatusPUBLIC

Content hashes

Canonical textb11846411f5652afee4dac39e64eec477ebe6c4d4ae3bd4ca957f3fbeb4e8e30
Markdown205fca9c4f3cf188a61f313ce333a0dfed48d854a8621f1edc29829ba6c7cdc8
PDF
Publication pagea080b8b0da94bab23383be7d316c9017367af340bfcb5bac341d0c8700766ca5
Manifest704ac218d8ed7b9ec247066d03fbd71a1bc15a4cb32ed58f7fca6432b063c2f2

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
SignatureePGu3SIOqBwZ/QxkJ5iedWJHOydKJdRWM9ZteLroo2EJniLcyf7pOuhYzNmUPSaquOGXUKY9+4jP04dN8I2oBw==
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

2026-09-17T09:44:19.256298ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091076
observed a080b8b0da94bab23383be7d316c9017...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:19.239615ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091076/manifest.json
observed 704ac218d8ed7b9ec247066d03fbd71a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:19.222327ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091076/publication.md
observed 205fca9c4f3cf188a61f313ce333a0df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:19.203537ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091076/publication.txt
observed b11846411f5652afee4dac39e64eec47...
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.