OpenTechnical

OT-2026-000013489

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, single stage ejector, 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-2026-000013489) never changes.

Identity and time

Publication numberOT-2026-000013489 · never reused
Internal UUID01a0ae6d-6fca-7a8c-8836-00e232dfde19 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013489
StatusPUBLIC

Content hashes

Canonical text79adc67089aae1977940abb6b0323d2e09b632ef82a4b08347e55828a8e887af
Markdown770cb77688dc9e33bbef3a2af2aff428ae9b29eeaa80bf98808e6bcf34d76d2a
PDF
Publication pagea5ead6c46048f9aedbe9e4dd4008fe1a7731f643223fc9661703a81eb13fd253
Manifestbb48227379fefb5681be4a0054c2644c8a776721eee065bcd237f1cc19221d90

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
SignatureATZUUcSMaDqK50URhsKNSeJjdvPQ9K5xoYD/mxgAElxGB5foNnALq037WC1slKCDRMwEjryoODEZtlVj8mpUCA==
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

2026-09-17T12:09:59.668533ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013489
observed a5ead6c46048f9aedbe9e4dd4008fe1a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:59.649636ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013489/manifest.json
observed bb48227379fefb5681be4a0054c2644c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:59.628297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013489/publication.md
observed 770cb77688dc9e33bbef3a2af2aff428...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:59.607328ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013489/publication.txt
observed 79adc67089aae1977940abb6b0323d2e...
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.