OpenTechnical

OT-2026-000013743

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, 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-2026-000013743) never changes.

Identity and time

Publication numberOT-2026-000013743 · never reused
Internal UUID01a0ae6d-8de9-70ec-870a-4f33e6a6069b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013743
StatusPUBLIC

Content hashes

Canonical textceb7da3ca12b14958b75a8ad84c778180a5a8d56a0e3293f14078bcf8179c538
Markdown92981311f2144ab4f3df4718423c326621baa86de5ddfc02a7f9210760e18884
PDF
Publication pagee9bf1d80fad885b219789ec3b6e0332365580410a6cbcd5839bcb76f0b167a9e
Manifestd69f030ddc184fcfd679c2d879a84a853f95cb9b1c5048505a5a01270e4d1eb1

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
SignatureGJoSc0BoKOiJLmmzhCXr5TIj5pNZQaT+aiRC4pr1jqFWa23Bx2EhaP41s9QAvgQEN9ZownHGvtUANFmRWb5FDQ==
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

2026-09-17T12:08:42.733868ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013743
observed e9bf1d80fad885b219789ec3b6e03323...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:42.714699ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013743/manifest.json
observed d69f030ddc184fcfd679c2d879a84a85...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:42.697569ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013743/publication.md
observed 92981311f2144ab4f3df4718423c3266...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:42.679414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013743/publication.txt
observed ceb7da3ca12b14958b75a8ad84c77818...
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.