OpenTechnical

OT-2026-000015387

Publication integrity record

Foam pad vacuum gripper, two zone face, two outlet manifold, single 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-2026-000015387) never changes.

Identity and time

Publication numberOT-2026-000015387 · never reused
Internal UUID01a0ae6d-ef49-7e4e-890d-796a54377653 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015387
StatusPUBLIC

Content hashes

Canonical texte4e85f206e0d9bd7e4968f982cc01b696f97cc5b40028861ed36e419ffc58f5f
Markdownbf62ebb16239779be9d589756b5e5cff5a6a2fdcbee6f06f192469f77d1102d7
PDF
Publication paged10256e3a7cc4e8a0d0927118b4d18ae5055bb1312736b1246f48cf1c6591677
Manifest83b9c2a42b64bf644b5c25d6594426eb4972e7d541e4557989c926ebc21e0256

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
SignaturePtYHkzUqZ9UQIQmkP9Gcf1OyUVpv6SbRQqTObdr8w6Soyrozm88JzLUW/Syq9/vGppP3G5pg9/T8E03eDZWzCw==
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

2026-09-17T12:06:06.372890ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015387
observed d10256e3a7cc4e8a0d0927118b4d18ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:06.351909ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015387/manifest.json
observed 83b9c2a42b64bf644b5c25d6594426eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:06.332723ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015387/publication.md
observed bf62ebb16239779be9d589756b5e5cff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:06.314034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015387/publication.txt
observed e4e85f206e0d9bd7e4968f982cc01b69...
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.