OpenTechnical

OT-2026-000091920

Publication integrity record

Foam pad vacuum gripper, three zone face, six outlet manifold, single stage ejector, pressure sensor per zone, sustained 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-2026-000091920) never changes.

Identity and time

Publication numberOT-2026-000091920 · never reused
Internal UUID01a0ae9d-43bb-7e37-b2f8-58113a38e49d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091920
StatusPUBLIC

Content hashes

Canonical textccf83d274a08c9439046eb686b81a7cab367cf503fdad59b7cda90603dc99387
Markdownb002d4864a2ef9720e1803688519c2e3974d2fedccd6ba4d8fcaad8a108926cb
PDF
Publication page9c19370bfc206073a4e7d2b508184484218c72ca2387cfc05aec0ede0fd157ec
Manifest1ff462ccc9ad3dd6ae93631e37a2fd735c0d722f965bb650e2171f510cc323fe

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
SignatureoX5QApxVVrXfmQGskfRAKE7lemq5Y29gNEuaDEO/B3KYMsKGfcpSFMN9oUUtJ5XqsePjBbAVgWOhZfi5ZYXtDw==
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

2026-09-17T09:42:51.665671ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091920
observed 9c19370bfc206073a4e7d2b508184484...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:51.649103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091920/manifest.json
observed 1ff462ccc9ad3dd6ae93631e37a2fd73...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:51.631720ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091920/publication.md
observed b002d4864a2ef9720e1803688519c2e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:51.614665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091920/publication.txt
observed ccf83d274a08c9439046eb686b81a7ca...
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.