OpenTechnical

OT-2026-000021889

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump fed, sustained blow-off before set-down

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-2026-000021889) never changes.

Identity and time

Publication numberOT-2026-000021889 · never reused
Internal UUID01a0ae6f-bb5b-76e4-a63b-51cd025fec37 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021889
StatusPUBLIC

Content hashes

Canonical text47bc6ea92a5bd4adbee93664cceca930f215ab3d0ef5e174e391b3891761573a
Markdown3354df7a77f6654eb9070c97d9a474822648cb6dacf9e81d67d11a72a3efffd6
PDF
Publication page351d1420a11877c74aff43776b2b55900633aed0c60e888d7a6462813e05bd62
Manifest1b51228ee3b0ca47a38104074504c464fd15640236ba21b9eb50502a545eeb1e

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
SignatureCUWJrB8pDdgP9z7UIimqaFge7Yso+z42jcl/zXlsCBPaYlAcp9VAoAmhe8ywxUujsKjwgoRo7qaNjAFn04MtDA==
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

2026-09-17T11:54:27.351307ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021889
observed 351d1420a11877c74aff43776b2b5590...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:27.334086ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021889/manifest.json
observed 1b51228ee3b0ca47a38104074504c464...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:27.314697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021889/publication.md
observed 3354df7a77f6654eb9070c97d9a47482...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:27.297574ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021889/publication.txt
observed 47bc6ea92a5bd4adbee93664cceca930...
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.