OpenTechnical

OT-2026-000090975

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, single stage ejector, pressure sensor per zone, 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-2026-000090975) never changes.

Identity and time

Publication numberOT-2026-000090975 · never reused
Internal UUID01a0ae9c-c011-79e8-aa68-6df4f707d1ea · 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-2026-000090975
StatusPUBLIC

Content hashes

Canonical textde6516d1dc9629cb154d5f1fe812c65fcfe4b3e7a448b37a801265ed9ef968d3
Markdown3f13a4fee5d44f76020fbe28bf31d9944bb4b4bcde40058a9ff1f689565404d9
PDF
Publication page717ba7195f24c34cc3df401cff75fe7b82e7023f1f254eb8d0c444562ed4910b
Manifest416a05b0084f512038ec9483664bbaaca840daf0cf2148947897deb70b47f8a3

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
SignaturebK4eEQS2eCxKPD7Oaduv6rN5G/9vg+nQRvLuYY3jrhZ5K3kmd3Dqo0c5wCi/OU6dZYkiT/+915MJsYUDKiAHCQ==
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

2026-09-17T09:44:12.023693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090975
observed 717ba7195f24c34cc3df401cff75fe7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:12.004594ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090975/manifest.json
observed 416a05b0084f512038ec9483664bbaac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:11.986195ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090975/publication.md
observed 3f13a4fee5d44f76020fbe28bf31d994...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:11.966688ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090975/publication.txt
observed de6516d1dc9629cb154d5f1fe812c65f...
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.