OpenTechnical

OT-2026-000048707

Publication integrity record

Four 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-2026-000048707) never changes.

Identity and time

Publication numberOT-2026-000048707 · never reused
Internal UUID01a0ae80-c32b-744b-9646-603aa0a2c86a · 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-2026-000048707
StatusPUBLIC

Content hashes

Canonical text4177a680c17798729c441652daaa0a6d88ae861b20157d79e8e97e9a143ef815
Markdowna87f4601b2812c764270866d9ac3e4b22d83dcd1c0bc85f5a2af25b718789ac0
PDF
Publication page3b7a636be35b94a9bba8b8f5c32c860bf1f7acecde700113ed98cd686639ccca
Manifest2021b69f571fed0cf2f7ac9c6b2b6829354e561e157848478c1972fe4ea1035e

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
Signaturebx5kzTX0WVI+cHPYzGerl/SfFw1y4or1t2A8PdNirCdxO+hbuH5D4Nnc0p5IeBjtau5bVra/G9IxKKmQK7FFDA==
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

2026-09-17T11:04:20.746396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048707
observed 3b7a636be35b94a9bba8b8f5c32c860b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:20.726806ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048707/manifest.json
observed 2021b69f571fed0cf2f7ac9c6b2b6829...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:20.707074ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048707/publication.md
observed a87f4601b2812c764270866d9ac3e4b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:20.687956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048707/publication.txt
observed 4177a680c17798729c441652daaa0a6d...
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.