OpenTechnical

OT-2026-000075650

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, supply line pressure sensor, vented 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-2026-000075650) never changes.

Identity and time

Publication numberOT-2026-000075650 · never reused
Internal UUID01a0ae94-29fd-7705-917c-b9bc450abab4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075650
StatusPUBLIC

Content hashes

Canonical text78bf780ff4a57a33e94f22248f7de8b79edb1163f1021d2477ad1a5ac702d691
Markdownad908d5c12b5fd7e92236512638f050fa10aa742b660c18f297ae2c18f71e98c
PDF
Publication page09809af780d64c716ad69c792bc9c56e17a527f7a9d6c2a98e29902f3bb32d2c
Manifeste121e19987feb37a08ea2e8feb41cb43c38451dfe796f72ea96f2b9463b6f35c

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
SignatureeBSHQHfHeUuU23GeLvXcIbpalBzwYYcer0OEJ7/bJwirNg+H9JCH3yQx4hr3KRn3e5sxFIIcwM2hKR8aX4jMDA==
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

2026-09-17T10:13:43.011702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075650
observed 09809af780d64c716ad69c792bc9c56e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:42.987957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075650/manifest.json
observed e121e19987feb37a08ea2e8feb41cb43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:42.800810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075650/publication.md
observed ad908d5c12b5fd7e92236512638f050f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:42.568244ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075650/publication.txt
observed 78bf780ff4a57a33e94f22248f7de8b7...
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.