OpenTechnical

OT-2026-000048655

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, 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-2026-000048655) never changes.

Identity and time

Publication numberOT-2026-000048655 · never reused
Internal UUID01a0ae80-c32b-7fc5-bcee-4d813d4bdf07 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:29.321882Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048655
StatusPUBLIC

Content hashes

Canonical text29679df21e57db84bebc0bbda1a57a784b390ded95aca90c885429c393191462
Markdownb03fd117c219aad19234451c738dde3a5002df370ee4499bd1ea0fb8c9231d9d
PDF
Publication page054061c8271d2737c1b8a3f2d636b2e4c7a1c13ee4ad21f715ca4d36404ed073
Manifestcdcec3ed8f32ffc0e19c1e7bc04c00f1106f81e7f5c175d98e3715c60a4e80b4

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
Signaturekz4l+G7N/mV7MXSDdkcBe4cutSkX9jaghxal1fkTNWFJzyCAKAEDuTlESMF1Us2y3RVcAIECgmYZj8Rs43cSCw==
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

2026-09-17T11:04:16.218865ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048655
observed 054061c8271d2737c1b8a3f2d636b2e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:16.199035ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048655/manifest.json
observed cdcec3ed8f32ffc0e19c1e7bc04c00f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:16.178132ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048655/publication.md
observed b03fd117c219aad19234451c738dde3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:16.156959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048655/publication.txt
observed 29679df21e57db84bebc0bbda1a57a78...
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.