OpenTechnical

OT-2026-000072142

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, vented 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-2026-000072142) never changes.

Identity and time

Publication numberOT-2026-000072142 · never reused
Internal UUID01a0ae92-47c1-7da9-81b4-29c9f15dd551 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072142
StatusPUBLIC

Content hashes

Canonical text481185242873547d7cf63391bb8ae6afefdcf598d35f8200f475e49aa86ac086
Markdownf880e82e0e1bb30493d365a2e6e36e0e575004c0d618e4997983f63a155be69e
PDF
Publication page6d3f611d1b34b6a25c9ad96db531a3fd1728d4ad1ac730acf7731ce0b6e1b6c4
Manifest94ffe81e1a3ea7b720b21d8ca9877b5a2f52e57282e2f6e1f4e3c30d4a485e39

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
SignaturevK9jBv/1Gl3Un9TiAVI0i0yzNLszIh9QO6R/hg7JaxLyCJ05KDq6ZWffmvIrGVILszVBHFy+WXrrAFtCMWIZAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:23:14.217513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072142
observed 6d3f611d1b34b6a25c9ad96db531a3fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:14.199665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072142/manifest.json
observed 94ffe81e1a3ea7b720b21d8ca9877b5a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:14.183998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072142/publication.md
observed f880e82e0e1bb30493d365a2e6e36e0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:14.167702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072142/publication.txt
observed 481185242873547d7cf63391bb8ae6af...
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.