OpenTechnical

OT-2026-000029752

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, sustained 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-2026-000029752) never changes.

Identity and time

Publication numberOT-2026-000029752 · never reused
Internal UUID01a0ae73-5e24-7db4-81ab-fef0dea21d2e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029752
StatusPUBLIC

Content hashes

Canonical textdb2d84c4cf1b419f88759c9cf7335f63bee5779a79f170fb287114b9daaf04f5
Markdown0138dc56745299b9d10a6d69328129377a30045848ab36af7254aa71492e8f64
PDF
Publication page6674f8868e7adc30c3bb191d62c79ac145a167a02c4ee4583d5e97e08dd45893
Manifesta35605ae0ef475463f723cea261487e7dc36ead2b000afd47196c85060649a10

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
SignatureJB1LnGeoCtBqkxiFKB3/wx5yfm45hI2T3TataAKPDRqmHdMh5jB1RorJ2njHyUqNtJstEXQweGi51BU2XFLXBQ==
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

2026-09-17T11:39:30.742396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029752
observed 6674f8868e7adc30c3bb191d62c79ac1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:30.724087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029752/manifest.json
observed a35605ae0ef475463f723cea261487e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:30.703846ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029752/publication.md
observed 0138dc56745299b9d10a6d6932812937...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:30.684287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029752/publication.txt
observed db2d84c4cf1b419f88759c9cf7335f63...
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.