OpenTechnical

OT-2026-000090221

Publication integrity record

Foam pad vacuum gripper, four zone face, six outlet manifold, pump fed, manifold pressure sensor, sustained 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-2026-000090221) never changes.

Identity and time

Publication numberOT-2026-000090221 · never reused
Internal UUID01a0ae9c-428f-7558-90de-e9cf38226d34 · 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-2026-000090221
StatusPUBLIC

Content hashes

Canonical textcde5df05ca7732bc5648b1321e1a256a3f5ed9287cfb5412c09f648a4c3cc378
Markdown3e4878dcaab69f936eec5c591f76e85ce7dd93f97e62b4984bfe6dcd0abde0b7
PDF
Publication paged174f2d108e2b4702efa8438776e898db7891ceb51a0d32d57e62c6141fceb53
Manifest89d1184035c3285ff6843504e95cc68c03830d250403cb15162ed40819913bd9

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
SignatureXpemPqGhPXDBhsB/XvSwOwImorKT1YGZZKTW1TD2QA/3PllTv1fJIn0lOuJsYqfqiLb0QRi/jq8foE4SXJJuBA==
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

2026-09-17T09:46:17.990374ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090221
observed d174f2d108e2b4702efa8438776e898d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:17.971487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090221/manifest.json
observed 89d1184035c3285ff6843504e95cc68c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:17.953960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090221/publication.md
observed 3e4878dcaab69f936eec5c591f76e85c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:17.936078ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090221/publication.txt
observed cde5df05ca7732bc5648b1321e1a256a...
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.