OpenTechnical

OT-2026-000081672

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump fed, supply line pressure sensor, 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-2026-000081672) never changes.

Identity and time

Publication numberOT-2026-000081672 · never reused
Internal UUID01a0ae97-0f73-7ea3-9cb9-d6adf5f5b5af · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081672
StatusPUBLIC

Content hashes

Canonical text6d20b5b98793edc67ceaf12f48b356713199ef966fbe34614baa35ebe69701d6
Markdowndc0f2f6f0339546e9e970ad343b6e4948e42e6decf4d4e557082d6c69e6e96bd
PDF
Publication page47d27eaa0185ea2faa26dea621f0a7fa5cab23871d025c18f6f0afa1d107986f
Manifest772a4c0740e1e1e8f4831293d2946e68012de9fd09a9c318be2e7a7ab112b5c4

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
SignatureguuKfdOhVJayM4x7nCvKtxMJ4i5Dw4IqEEF3ipxslOzT3IKwLwmm7KogH7idOvNg94wmJv0gBJuKGlrXIgL6Dw==
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

2026-09-17T09:59:43.981772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081672
observed 47d27eaa0185ea2faa26dea621f0a7fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:43.963752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081672/manifest.json
observed 772a4c0740e1e1e8f4831293d2946e68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:43.945760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081672/publication.md
observed dc0f2f6f0339546e9e970ad343b6e494...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:43.901852ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081672/publication.txt
observed 6d20b5b98793edc67ceaf12f48b35671...
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.