OpenTechnical

OT-2026-000067978

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, sustained blow-off after 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-2026-000067978) never changes.

Identity and time

Publication numberOT-2026-000067978 · never reused
Internal UUID01a0ae8f-c4fd-73a0-8b0f-f3a29bb65286 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067978
StatusPUBLIC

Content hashes

Canonical text6497b29f2e05c67c11ecb9947c0a6c98c839cb15750759170f5de7f00c528cc8
Markdown2668f385c6f407351cb4ebae45bc7a7713bc9e5e3d256ad826bb1fe0bb2a690e
PDF
Publication page95f147a7d6bf20b01dbc370af11b10e6ebc5e6de4f45be67985c36e69d09d941
Manifestcdb7f785733cd30d7cc5aae17291bdad2913b9532e8c96ee02ef0b38824df5a5

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
SignaturezqUSyHz+9U3/NPNdpJqgI2NB5kR7EZcbZYlT7iNm/nTCiHku7fS0a+zciLH0lqGw6O2KkvJ8kQ8bU1Qn/uuvAg==
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

2026-09-17T10:30:31.488845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067978
observed 95f147a7d6bf20b01dbc370af11b10e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:31.468521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067978/manifest.json
observed cdb7f785733cd30d7cc5aae17291bdad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:31.449963ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067978/publication.md
observed 2668f385c6f407351cb4ebae45bc7a77...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:31.431658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067978/publication.txt
observed 6497b29f2e05c67c11ecb9947c0a6c98...
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.