OpenTechnical

OT-2026-000028156

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, three stage ejector, 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-2026-000028156) never changes.

Identity and time

Publication numberOT-2026-000028156 · never reused
Internal UUID01a0ae72-a520-7f6d-83fc-e689e9b0bebd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028156
StatusPUBLIC

Content hashes

Canonical text54f3f9a8354fb0dbe5d556be7c8fb03732c0a8aed84a3f6ac040257b1073ec79
Markdownf53e1ed087aa398dd817456e77a5c099ef9d28b18775f9f9fcc277bdd6b01be9
PDF
Publication pagec763e4f74dd70495e61c5fdf02bbb743053867ffecfe4a83ab370178e3769019
Manifestb4b5f8aed288a20f83dcb177ac7872d10c01daeb1455c2b2759784d8d83e15de

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
Signature/2a9ZybFeqs3ziJRm4RARyuhcG4Xe8Jo46gsWCXu+chOVFGi1KzE4gZY+ymLQVuZ9KdOm5Xv5TSuRYuEhczzAQ==
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

2026-09-17T11:42:30.592868ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028156
observed c763e4f74dd70495e61c5fdf02bbb743...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:30.577461ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028156/manifest.json
observed b4b5f8aed288a20f83dcb177ac7872d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:30.557331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028156/publication.md
observed f53e1ed087aa398dd817456e77a5c099...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:30.540834ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028156/publication.txt
observed 54f3f9a8354fb0dbe5d556be7c8fb037...
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.