OpenTechnical

OT-2026-000013189

Publication integrity record

Three cup vacuum gripper, three outlet manifold, three 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-2026-000013189) never changes.

Identity and time

Publication numberOT-2026-000013189 · never reused
Internal UUID01a0ae6d-6fc8-7495-a30d-3227fd56057a · 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-2026-000013189
StatusPUBLIC

Content hashes

Canonical textb5d07ae47f3e1ded5858e17c032716efc37c72e28959277f14aac79899606ca0
Markdowneea70f2adc62394c74100007422224ffb2e88442afc079575158a1c96945c6d3
PDF
Publication page26aa78bac23925dcb8b2458182e34c613d0e55c790d99b36d8de58a6c1a7e8c5
Manifest42f18a4bb3cbda1c5a6dda12d86dabcd0526457834d0a33ed8346791afe8ef87

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
Signature1Bdvby7+gpCbokbYe0XfqeeUxF+uTB+jE2yaSR8xfEN/xaYdmbclGYt7uH7e0PpKy7kvr1PCNB68NctMIntwBA==
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

2026-09-17T12:09:34.200795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013189
observed 26aa78bac23925dcb8b2458182e34c61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:34.183735ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013189/manifest.json
observed 42f18a4bb3cbda1c5a6dda12d86dabcd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:34.167801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013189/publication.md
observed eea70f2adc62394c74100007422224ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:34.150084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013189/publication.txt
observed b5d07ae47f3e1ded5858e17c032716ef...
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.