OpenTechnical

OT-2026-000071589

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000071589) never changes.

Identity and time

Publication numberOT-2026-000071589 · never reused
Internal UUID01a0ae91-e0ee-7500-9d73-45adecdd84f8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071589
StatusPUBLIC

Content hashes

Canonical text7f52574887bd929c14c26a1ff8b7a59d0945000094f406c3d307523d28f4e3ec
Markdownac27adc376202fc3dbb7c70d8144a7f176ddfe886752cb621da90fa10f14e00c
PDF
Publication page82396100ae3b1113ebcac47120c11092dccdb427e41b1f19da533891f293358d
Manifestd4560c812e909c491fe51e2a4b0a3fdc1fb282973e9f345925240211608cbed2

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
SignatureFXdWpe5b5Uc9CBmzsX6RhckTI1c4kzutYJ+c8rPLanZmpTeZZ/BV49bcPJWjFL5k39fp4aZOt4BaMLHo20kaDQ==
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

2026-09-17T10:25:14.183339ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071589
observed 82396100ae3b1113ebcac47120c11092...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:14.164336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071589/manifest.json
observed d4560c812e909c491fe51e2a4b0a3fdc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:14.146523ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071589/publication.md
observed ac27adc376202fc3dbb7c70d8144a7f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:14.130111ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071589/publication.txt
observed 7f52574887bd929c14c26a1ff8b7a59d...
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.