OpenTechnical

OT-2026-000081431

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, two stage ejector, 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-2026-000081431) never changes.

Identity and time

Publication numberOT-2026-000081431 · never reused
Internal UUID01a0ae96-f375-7b40-b9dc-d59f5ed19bd3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081431
StatusPUBLIC

Content hashes

Canonical text784f7848bbaac2563c48b40cb90673636dde0f9dd5e8b33f906a42d67d09ffed
Markdowncfa8c7bfce828089b34a9afbed1b37b256027add58eb3094202d60d3906d7a0b
PDF
Publication pageaf46ee2ac56a3c8ea9a8197a1cf4dbf39567bf9c617a993a70af2a987b349734
Manifestb26c359f6d168b75ec828938e694dbf7286d2ae6ae3e6a4b0ad70fbf7293dd6e

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
SignatureKyMfvXIJA+8+A/4Rt7btIkV6KrjKrfcclNtmorwW6Eu08I7xyPSToQYJttAkjRBewli9DXTUPLksetk9UnWYBw==
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

2026-09-17T10:01:35.242646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081431
observed af46ee2ac56a3c8ea9a8197a1cf4dbf3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:35.223919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081431/manifest.json
observed b26c359f6d168b75ec828938e694dbf7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:35.205757ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081431/publication.md
observed cfa8c7bfce828089b34a9afbed1b37b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:35.189227ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081431/publication.txt
observed 784f7848bbaac2563c48b40cb9067363...
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.