OpenTechnical

OT-2026-000081473

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, three 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-2026-000081473) never changes.

Identity and time

Publication numberOT-2026-000081473 · never reused
Internal UUID01a0ae96-f375-7685-af5d-1017f633c1d2 · 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-2026-000081473
StatusPUBLIC

Content hashes

Canonical text8c595580f57d0d6ce4a0c90e1ce3e365cab017927c130b6563b6a429343aa601
Markdown248bfb72f3d7a90927144ea841ad15073510e8051a8a228b0bd69b2b631597f3
PDF
Publication page98a83b903b9f0839a798d77d9d4c9e2fa68e747aaa3b406cd007677fad42c885
Manifest39959031a99c29fefca707d0397c17c9b4c89329532ed2163587cb09d40e895d

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
SignatureE/hzijwre+ORqnN3hG7L2q/NneKFF6gsPrucy2c4ZKrSt14tr+ln28TTtRbv8M4NtjHVZboa6YEtHPcHAMiiBw==
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

2026-09-17T10:01:38.331057ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081473
observed 98a83b903b9f0839a798d77d9d4c9e2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:38.313863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081473/manifest.json
observed 39959031a99c29fefca707d0397c17c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:38.295429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081473/publication.md
observed 248bfb72f3d7a90927144ea841ad1507...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:38.279196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081473/publication.txt
observed 8c595580f57d0d6ce4a0c90e1ce3e365...
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.