OpenTechnical

OT-2026-000071015

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, single stage ejector, 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-2026-000071015) never changes.

Identity and time

Publication numberOT-2026-000071015 · never reused
Internal UUID01a0ae91-8c2e-7e5b-89e2-67ca4085cb0c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:49.344646Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071015
StatusPUBLIC

Content hashes

Canonical text49c3ed533ad9333b731fd4eb1d07792130546d1cb69a36ca4b30ba00e1267c8f
Markdown69e69dada46ee3d30d3a533e39b2ff76b750fdb84b634f828fcd28bbcddd14cb
PDF
Publication pagefb44d649dc60e4208e8cb0b8a5bc8c98f4133eb8ab4716d804e47d56a8c21951
Manifestebb07d7087617b19218dfc2db2e1399f82541699f86a6bb6ea0f8b54f051c715

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
SignaturePkIVzbf1Wh4v9OfR3QQvhTZeyi+Piunczh8EHpg5UwHV4JYWwXIwrY+GL10YOKTP3xFrGsAmCiaDG7ZhtyNiDw==
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

2026-09-17T10:25:52.160694ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071015
observed fb44d649dc60e4208e8cb0b8a5bc8c98...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:52.141704ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071015/manifest.json
observed ebb07d7087617b19218dfc2db2e1399f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:52.123721ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071015/publication.md
observed 69e69dada46ee3d30d3a533e39b2ff76...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:52.107480ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071015/publication.txt
observed 49c3ed533ad9333b731fd4eb1d077921...
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.