OpenTechnical

OT-2026-000072746

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, 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-2026-000072746) never changes.

Identity and time

Publication numberOT-2026-000072746 · never reused
Internal UUID01a0ae92-89da-7630-b5f3-b3223a9524a5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072746
StatusPUBLIC

Content hashes

Canonical textd0cff9ef577cfb7fa3bf6c59c614bbf744e5f5a07a2b30db75d9b31bfb45a22a
Markdown4a847b83d3e4ec86e64330d090c04af480b9b5138f6f543bed874d03e9528d7b
PDF
Publication paged3da664929b073e2b8c853b7695ca531b18010bdb7e61716d9f872a54f5b2e4b
Manifest05e749c29db5fafc65ed14f089f1b7e37b65bbfe8bc8c99be6cba0336d7a9df0

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
Signatureazt2ftc4eLPZV63yJybZ7et16gwRH+cHS0KfTS5LwFBuba/fOaabR8So+lxhM9+0uot4uZru0YFd0cUjmrv/Dw==
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

2026-09-17T10:22:39.061694ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072746
observed d3da664929b073e2b8c853b7695ca531...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:39.045461ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072746/manifest.json
observed 05e749c29db5fafc65ed14f089f1b7e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:39.028336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072746/publication.md
observed 4a847b83d3e4ec86e64330d090c04af4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:39.010835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072746/publication.txt
observed d0cff9ef577cfb7fa3bf6c59c614bbf7...
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.