OpenTechnical

OT-2026-000006074

Publication integrity record

Bellows cup vacuum gripper, three stage ejector, contact triggered, vented before set down, plastic cups

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-2026-000006074) never changes.

Identity and time

Publication numberOT-2026-000006074 · never reused
Internal UUID01a0a94e-78f1-74d8-ba29-f6938ef0aa23 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:21:27.412168Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006074
StatusPUBLIC

Content hashes

Canonical text8b7eded58dae1f7eb26aced1ecc1355f9ab77314f47f1c151dddc90bea6cf6f5
Markdownedecbec60e76bcdc8c710f3d6663f23a5a68b1622cf55d8431795c1becbdbf7a
PDF
Publication page3987664fa63e87be24d95c32186e1542b2387ba0f9781acec865a2b7ce179dbd
Manifest757f7adfd86d4c7effeae62fcb48030f261cb8ec8b82db90417909862867d2f2

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
SignatureoyPQN5ZkhrVmP7Qd0lfZSIn0/V1NnzzUjNuP/WOmjGTFtY6r7sxmVEmSH7KjnOEOfFmEU4mnRguZYf+XHgS0BA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:30:30.435257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006074
observed 3987664fa63e87be24d95c32186e1542...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:30.422996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006074/manifest.json
observed 757f7adfd86d4c7effeae62fcb48030f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:30.409603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006074/publication.md
observed edecbec60e76bcdc8c710f3d6663f23a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:30.396059ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006074/publication.txt
observed 8b7eded58dae1f7eb26aced1ecc1355f...
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.