OpenTechnical

OT-2026-000028702

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, three stage ejector, manifold pressure sensor, 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-2026-000028702) never changes.

Identity and time

Publication numberOT-2026-000028702 · never reused
Internal UUID01a0ae72-e2f9-7a45-80da-5f4f373e7042 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028702
StatusPUBLIC

Content hashes

Canonical textb73c1b2542f22eff00330955168c57f7a950951881ceb0468a6788b37a91d392
Markdown841c16703f91c3e1909c1ca4b94fd8b7dfe384b2b49c774400b57d717e906b55
PDF
Publication pageef9fa7cdc8d16a1e2981b667bcc42cab4db0c9fbd01d63a5e47fb1e994f361ad
Manifestbcfe5fa412ea6d02426c31d9d745a6fd2d3b9ae5a7ffd24fb47e9cfeadea8945

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
SignatureR0PfddoEsOXldrxmkyDcq2zOHqvsBrmup9jTnID4AC3e5Zc1gZijlORF0ALeUB7aGM8cPL7SwuQCa1oY4HvIDA==
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

2026-09-17T11:41:42.092085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028702
observed ef9fa7cdc8d16a1e2981b667bcc42cab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:42.071933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028702/manifest.json
observed bcfe5fa412ea6d02426c31d9d745a6fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:42.050015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028702/publication.md
observed 841c16703f91c3e1909c1ca4b94fd8b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:42.024287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028702/publication.txt
observed b73c1b2542f22eff00330955168c57f7...
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.