OpenTechnical

OT-2026-000037900

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, supply line pressure sensor, 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-2026-000037900) never changes.

Identity and time

Publication numberOT-2026-000037900 · never reused
Internal UUID01a0ae77-f88a-7d23-896e-bd503e30a0d5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:24:53.146436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000037900
StatusPUBLIC

Content hashes

Canonical text7b3a42c390ba796659690f1fd208b5c81b05b1ba0f6d97540ca194d0172e31c2
Markdown5ddaf6ecc94675f5418b19b6d6c7aaa85506ecec4da83be1fdc1ac4b0b156436
PDF
Publication pagebbb155ea9c290a3656657df57d25c7571bcad0ead8e7b9a7cf6e1cca4cefa485
Manifestf2965138bfb44afdd4dc76a4d347a6cc5514d1bac995569cc158ebb127d414b7

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
SignatureSd4bPcUopimqO6HuSsESyptLBVL8AuAy/mtvACmvT9NrFK5/KuMpVBkKEh1kYOkORLw5vlpEDzAafMO48H08CA==
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

2026-09-17T11:23:10.099018ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000037900
observed bbb155ea9c290a3656657df57d25c757...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:23:10.081597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000037900/manifest.json
observed f2965138bfb44afdd4dc76a4d347a6cc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:23:10.064100ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000037900/publication.md
observed 5ddaf6ecc94675f5418b19b6d6c7aaa8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:23:10.023664ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000037900/publication.txt
observed 7b3a42c390ba796659690f1fd208b5c8...
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.