OpenTechnical

OT-2026-000090535

Publication integrity record

Foam pad vacuum gripper, four zone face, two 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-2026-000090535) never changes.

Identity and time

Publication numberOT-2026-000090535 · never reused
Internal UUID01a0ae9c-7f2f-7b5c-9101-0cad80e8038f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090535
StatusPUBLIC

Content hashes

Canonical text525162a34384df16e7c6a130761077b5545212a3fba7a67ee3c2806d4053f771
Markdowne596c34a136b0f53327954f70f0d68e012f8844933fcf2af6c8767ebfdf3f74e
PDF
Publication page94aeb0e8e2b3dd0a730c127c31d9ed0be7a84682d70f8b24ea2600b83c35169b
Manifest07672660d83c613d15086c08fa470fcbd2044e1c8654d7c68524c2ba433480e2

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
Signature7tFZ0GUGEvmKgVGIE7ow0v41dru/H24iJrjv+I2O6fpa03I4kAlHfY5BmMR3QiI1kQyLMzQg+XcXJJXqEu4GCg==
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

2026-09-17T09:44:42.433846ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090535
observed 94aeb0e8e2b3dd0a730c127c31d9ed0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:42.414604ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090535/manifest.json
observed 07672660d83c613d15086c08fa470fcb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:42.392740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090535/publication.md
observed e596c34a136b0f53327954f70f0d68e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:42.373847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090535/publication.txt
observed 525162a34384df16e7c6a130761077b5...
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.