OpenTechnical

OT-2026-000027571

Publication integrity record

Foam pad vacuum gripper, four zone face, two stage ejector, pulsed 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-2026-000027571) never changes.

Identity and time

Publication numberOT-2026-000027571 · never reused
Internal UUID01a0ae72-6999-73e5-9135-15341d2f9b38 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027571
StatusPUBLIC

Content hashes

Canonical text827bf8e4c23d644d63c0914e590459d0bfc7db87c1dfe8c4b1b2407fe136ac34
Markdown6dadeabf47621dcb489bf378ba0972a84fc291bfd803824084159ad24b6f5fef
PDF
Publication paged53a4e10cec0a759682476578538ce57933ce13a6fa9a799110e706edf766cba
Manifest619ae670c79d2509f17678e3505446b13ede4c8d97aa1f5ea9a5514aec3529bb

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
SignatureCyFxJhEiN3D+lUdiesHAZ/8/JLEXrw3tTsiGg5l3cM0gxh7vdqydQ4auUIqOeK6+zkgHVOYfRSjhKDlN5lpOAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:43:03.801006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027571
observed d53a4e10cec0a759682476578538ce57...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:03.783111ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027571/manifest.json
observed 619ae670c79d2509f17678e3505446b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:03.767841ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027571/publication.md
observed 6dadeabf47621dcb489bf378ba0972a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:03.751055ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027571/publication.txt
observed 827bf8e4c23d644d63c0914e590459d0...
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.