OpenTechnical

OT-2026-000049935

Publication integrity record

Foam pad vacuum gripper, three zone face, three outlet manifold, pump fed, pressure sensor per zone, 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-2026-000049935) never changes.

Identity and time

Publication numberOT-2026-000049935 · never reused
Internal UUID01a0ae81-fd76-729a-a409-41a90c83dcd7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:49.774136Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049935
StatusPUBLIC

Content hashes

Canonical text2ea27d8daf02cdc813f7db6bce0178324d0ee669feb3c9d20e3567350a927550
Markdown1681d1a63e72f6e293a5089c29323024adf7ba2b5d7ec5ed5caa1e5ad1b68a90
PDF
Publication pageb37216431bca4bdeec268635b307ae6937b5de952ba3d30a06c368b0eb0c0bd4
Manifest5d8091a30fecf570e66db3e033ac043d5a877dcfb37a782af8c1bc355823f964

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
Signature4VnfxhRwnNoMpp3hUpDiH0N+WScWntPtjVPi6AYfGPHUQTrKFvhG63SPqAzN6+qXNr3j7TmIxEPobO4UdveqAg==
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

2026-09-17T11:01:52.078828ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049935
observed b37216431bca4bdeec268635b307ae69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:52.058758ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049935/manifest.json
observed 5d8091a30fecf570e66db3e033ac043d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:52.038622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049935/publication.md
observed 1681d1a63e72f6e293a5089c29323024...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:52.020578ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049935/publication.txt
observed 2ea27d8daf02cdc813f7db6bce017832...
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.