OpenTechnical

OT-2026-000068138

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, plant vacuum fed, pressure sensor per zone, pulsed blow-off before 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-2026-000068138) never changes.

Identity and time

Publication numberOT-2026-000068138 · never reused
Internal UUID01a0ae8f-c4ff-7f91-837e-d937a31149d7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000068138
StatusPUBLIC

Content hashes

Canonical text8d70cba9890ec83081afd0157ce4a0c5f7d1c5ce5c16b640e57380831ee54d6b
Markdownd8ea0bcccd64e585d030c426371561ccb022e69fa8c0178b0333ae7caf84d7b4
PDF
Publication pageceb137b0e015c9d536f7dcca58a5b4940e0e933f02ea93d356aceb490b2df08c
Manifest68d27e2c25eea6ad58841db4313feb073a8a30521fb2883b4c493ba915e28616

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
Signaturegr7FUtmFQ5D7doJhcP8NfsPfysTCKPScEpxnYIvFfnztlufl5gHNQg3vjmelgIVYcPn6qonrI3tvK+FAPx+HDA==
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

2026-09-17T10:30:46.867460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068138
observed ceb137b0e015c9d536f7dcca58a5b494...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:46.848088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068138/manifest.json
observed 68d27e2c25eea6ad58841db4313feb07...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:46.829780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068138/publication.md
observed d8ea0bcccd64e585d030c426371561cc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:46.810733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068138/publication.txt
observed 8d70cba9890ec83081afd0157ce4a0c5...
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.