OpenTechnical

OT-2026-000081506

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, single stage ejector, supply line pressure sensor, vented after 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-2026-000081506) never changes.

Identity and time

Publication numberOT-2026-000081506 · never reused
Internal UUID01a0ae97-0f70-761f-bf54-2496c0dcef35 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081506
StatusPUBLIC

Content hashes

Canonical text2b69be1825d1eb3cdc5aca6d78f9ded0b93080a5550a3b28c086e66294b1ba14
Markdown68b26805f22faacc0e1975bab6f3a5d9458d6142781e1d88f513051d555c82fc
PDF
Publication pagefbc751d52c38cd8fccf21abcf9fd92ea7ba723ad6284d70d790f0938750708b6
Manifestdb376c7408a5aa7c98c803e23416b875329c3a3d38810bab8fba6071dba86c1d

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
Signature+/8KursU7UTdC8IVC9cFjNeZuEFmAcW7K+MaYpg3YJ9ln/Ue5KPUDwtayExoADp1AQpQhAWhHkE6SP+20IE1DA==
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

2026-09-17T09:59:31.233514ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081506
observed fbc751d52c38cd8fccf21abcf9fd92ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:31.215030ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081506/manifest.json
observed db376c7408a5aa7c98c803e23416b875...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:31.197680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081506/publication.md
observed 68b26805f22faacc0e1975bab6f3a5d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:31.179966ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081506/publication.txt
observed 2b69be1825d1eb3cdc5aca6d78f9ded0...
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.