OpenTechnical

OT-2026-000061298

Publication integrity record

Foam pad vacuum gripper, pump fed, vented after 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-2026-000061298) never changes.

Identity and time

Publication numberOT-2026-000061298 · never reused
Internal UUID01a0ae8b-1384-7c9b-acfb-96840c8f5527 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:45.252443Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061298
StatusPUBLIC

Content hashes

Canonical text63ca25557e6fc3ff8cf8ece36e3ce615e5f206c8ba599a3a90a128454d97bbaa
Markdown4488fa286eb515761d3015fd8a74fff12bd7c8a16e58e8a9e7e776904dca5e2f
PDF
Publication page2b90c5d0fa2626c9f7143b929f72d24a5c241ee964499c4c1c7082373ee2ada4
Manifest64d0bdd107dc4bf72b4e573601e568b1f0b6d2faa7a7db2dd8325bf4b7e9acb9

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
Signaturet3YxdBZyonykABlKFST4SaXs36POwbIDx0S8SplawzkIzC6uaakhjmmTPRfFhqF4cu7mejTDucuASs5xHt1EAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:42:43.543946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061298
observed 2b90c5d0fa2626c9f7143b929f72d24a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:43.527177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061298/manifest.json
observed 64d0bdd107dc4bf72b4e573601e568b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:43.508762ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061298/publication.md
observed 4488fa286eb515761d3015fd8a74fff1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:43.490137ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061298/publication.txt
observed 63ca25557e6fc3ff8cf8ece36e3ce615...
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.