OpenTechnical

OT-2026-000091579

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, 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-2026-000091579) never changes.

Identity and time

Publication numberOT-2026-000091579 · never reused
Internal UUID01a0ae9c-f16e-7de2-a04f-3bf22676bf22 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091579
StatusPUBLIC

Content hashes

Canonical textb9ffbb18dc7824428fcca836a93daa1fab81938d59e8e531cd44fba5f31c5159
Markdownf16e7ee67329a689361938a1f6b6dabaec1830115a4a5849551230746a69a6f6
PDF
Publication page810d2851d162059a1d96525d16a2765d1e7777f402092fe1099314225791b488
Manifestd2d1305cedca1f50fe9f8f48d5d7ce4594deaf3073fc3d6b997e2d5cf3a5ec67

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
Signaturep8MOLwPkIkjIGhR1bzgN15pZf4QH3SY6YF9f8OuFaQLz4g4W5k6Q4femJe2U8f0I7wMCOigEQEFgh0X6dxtIBw==
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

2026-09-17T09:43:51.097379ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091579
observed 810d2851d162059a1d96525d16a2765d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.080869ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091579/manifest.json
observed d2d1305cedca1f50fe9f8f48d5d7ce45...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.065313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091579/publication.md
observed f16e7ee67329a689361938a1f6b6daba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.049495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091579/publication.txt
observed b9ffbb18dc7824428fcca836a93daa1f...
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.