OpenTechnical

OT-2026-000027385

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, supply line pressure sensor, sustained 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-2026-000027385) never changes.

Identity and time

Publication numberOT-2026-000027385 · never reused
Internal UUID01a0ae72-6997-783a-97af-d8a3a7800d18 · 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-2026-000027385
StatusPUBLIC

Content hashes

Canonical text82c3f0ab9025d8d89456fcd944d99b2d62e5219760d2e088500066c7ebb5fcf3
Markdowne1847611beb89e54028a920a2171a9e663c35aa927e8e7e4a03955900388d88b
PDF
Publication page105c89ca7e55f2ff82df799ec794de1102226f95b7b418dac5e8b5da4c19edac
Manifestabcbf12db2e97cfac3c1e00cbf9608d20ffa64054ebc795a8fbcafb6f7dcb22e

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
SignaturedArcrRfWbIXtD3jepVzoxGEIYobKkcjvs5iPS1gMz84fcqR4TruAFO/rLhHMb9GZ4Pa5nnNPGX26jG9jmeOkCA==
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

2026-09-17T11:42:48.254798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027385
observed 105c89ca7e55f2ff82df799ec794de11...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:48.236823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027385/manifest.json
observed abcbf12db2e97cfac3c1e00cbf9608d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:48.218358ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027385/publication.md
observed e1847611beb89e54028a920a2171a9e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:48.202561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027385/publication.txt
observed 82c3f0ab9025d8d89456fcd944d99b2d...
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.