OpenTechnical

OT-2026-000029947

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, single stage ejector, pulsed blow-off 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-2026-000029947) never changes.

Identity and time

Publication numberOT-2026-000029947 · never reused
Internal UUID01a0ae73-ac48-767d-920b-f69949fda40d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029947
StatusPUBLIC

Content hashes

Canonical text5e7c8dea1b30bca2795626c132c170dba448aebe4c51cc01cc2183d784734994
Markdownefbe37465f2991de18872114949e8d8db93bddb1c1e842d97a46491ceacb0ffd
PDF
Publication page12d87df4bf7c8a620a65537c5641c0fb40e6e6827cc6f530c8fe93215af6fbbf
Manifest2a8e77271d6d879cecc5c6b85a01c656cf328dc8aaa329e0c107ef9111457206

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
SignatureEcZVlVudp+e8VPpG48x82WOZ05CXb0MCWA39muiJ4gNf3Nar64cL+MZsN5XhtdxhqhnaUj7ZJulwPUyKrIoeDw==
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

2026-09-17T11:38:39.598127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029947
observed 12d87df4bf7c8a620a65537c5641c0fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:39.580441ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029947/manifest.json
observed 2a8e77271d6d879cecc5c6b85a01c656...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:39.563032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029947/publication.md
observed efbe37465f2991de18872114949e8d8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:39.542330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029947/publication.txt
observed 5e7c8dea1b30bca2795626c132c170db...
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.