OpenTechnical

OT-2026-000043076

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, pulsed blow-off after 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-2026-000043076) never changes.

Identity and time

Publication numberOT-2026-000043076 · never reused
Internal UUID01a0ae7b-3278-7321-9a53-52ea56679ea8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043076
StatusPUBLIC

Content hashes

Canonical text829b0fdf9d7aea52cccff933e1de74d291f869196f71b2c0a7ef1aa38b19ddc8
Markdown84bb9d298e3db7d9af8e89ee83b78b9374114c0e9233e74a1dda690725d45b1f
PDF
Publication page6c5350aac6618e718820269f765c3cb6d88178cd15bb9e9ad7676d5867bfb4d9
Manifest818250120e732876593516d2d378ef087ec810c4c6e741fdff1d6d66207af05b

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
SignaturePLxEkfcOgKMP13JMZbnXnTlrjRHdv+1fpWNVzt/jTBZYsTRmBmVQRFEShNF5xsuao3W4TLnN1bH8U9p9fxeBCg==
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

2026-09-17T11:13:29.486893ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043076
observed 6c5350aac6618e718820269f765c3cb6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:29.469682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043076/manifest.json
observed 818250120e732876593516d2d378ef08...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:29.449791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043076/publication.md
observed 84bb9d298e3db7d9af8e89ee83b78b93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:29.431176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043076/publication.txt
observed 829b0fdf9d7aea52cccff933e1de74d2...
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.