OpenTechnical

OT-2026-000084013

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, 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-2026-000084013) never changes.

Identity and time

Publication numberOT-2026-000084013 · never reused
Internal UUID01a0ae98-5b5d-7af6-bb60-6d19370fb255 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:15.619216Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084013
StatusPUBLIC

Content hashes

Canonical text62754cda0c08cd9df447383b490b4b6f3260b404ec22b4eed189ad98662bbc5f
Markdown20e875529373589a27b359cee244bb91892333942844398b0fc36ea92d74a26d
PDF
Publication page774154d5263b2cc61cf1d1f3ce4cad0e4695604813d760e03b82c34b1a9523f6
Manifestdcdfad81b3afb3a44356b5fbab40111d5bebb1af8dd6272f30c7d0769bf1bc9a

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
SignatureKgF8i2P9PRuKPfR5926YAsJD7OWCDD2hSRWcnWGnnRVtBzBvyYcEGTJ1bSzvIcWiC9utoMJi8b9INMQCzgLfDg==
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

2026-09-17T09:55:43.931473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084013
observed 774154d5263b2cc61cf1d1f3ce4cad0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:43.911907ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084013/manifest.json
observed dcdfad81b3afb3a44356b5fbab40111d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:43.892460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084013/publication.md
observed 20e875529373589a27b359cee244bb91...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:43.874788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084013/publication.txt
observed 62754cda0c08cd9df447383b490b4b6f...
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.