OpenTechnical

OT-2026-000090143

Publication integrity record

Foam pad vacuum gripper, four zone face, six outlet manifold, single stage ejector, manifold pressure sensor, 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-2026-000090143) never changes.

Identity and time

Publication numberOT-2026-000090143 · never reused
Internal UUID01a0ae9c-428f-71d8-8d60-9da1d2dc58f0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090143
StatusPUBLIC

Content hashes

Canonical text7a5dc8450216310047ba64252f076ec13696d8c785652c4e0284f9ab59974abb
Markdown69ea509f7372bcd2c85920a24e819a3e2a0c46644c98a56ff08dfbd59fd9f53d
PDF
Publication page5da367ec53e6abfa1ca134cd66c1901df8036069a4477f6d43f22dc4e5cef854
Manifest26b4127658695f4edc0c9473f677aa7a6e9f694b0b09d348d37be14097e4044d

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
SignatureJXQCAEqALPLngYKXb9urcVKNPbYKtS5pQYFuTHBJ/O/WE1XIz1fguaUJcVvnMmXCJ4iQDSZ/mqEyevR17TRmDg==
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

2026-09-17T09:45:39.131176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090143
observed 5da367ec53e6abfa1ca134cd66c1901d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:39.036136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090143/manifest.json
observed 26b4127658695f4edc0c9473f677aa7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:39.016085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090143/publication.md
observed 69ea509f7372bcd2c85920a24e819a3e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:38.993434ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090143/publication.txt
observed 7a5dc8450216310047ba64252f076ec1...
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.