OpenTechnical

OT-2026-000019228

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, pulsed blow-off before set-down

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-2026-000019228) never changes.

Identity and time

Publication numberOT-2026-000019228 · never reused
Internal UUID01a0ae6e-f391-7fc6-9cb2-40054130b71d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019228
StatusPUBLIC

Content hashes

Canonical text43a45941688db3cb246789f1da85d5ec66e9694a1be8dc1208fcc183fddfc5d7
Markdown785ed8c061c71986d4972e30f87e7af68a2cb48d99f6437d91d92240e66c52c0
PDF
Publication pageee2148e1c8bdb207401d25b2e216230c066f513cc5aaa663ac0412f7f8564e7f
Manifest428a969dcb8688743c8da3e110f5b14ac6f4ba7aa21fa89e5c6df94fb66f1d93

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
SignatureK1SPDprgIQosxE/F/Mxo5RdzDbfiFO3YcXjIGLLdgytfDkNsLc++Z/841ejjE74eRcoTrjiFYp/XUG1i4mRuDw==
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

2026-09-17T11:58:33.265445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019228
observed ee2148e1c8bdb207401d25b2e216230c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:33.248205ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019228/manifest.json
observed 428a969dcb8688743c8da3e110f5b14a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:33.231922ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019228/publication.md
observed 785ed8c061c71986d4972e30f87e7af6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:33.214562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019228/publication.txt
observed 43a45941688db3cb246789f1da85d5ec...
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.