OpenTechnical

OT-2026-000081509

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, 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-2026-000081509) never changes.

Identity and time

Publication numberOT-2026-000081509 · never reused
Internal UUID01a0ae97-0f70-7552-922e-1708a8a9f5cc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081509
StatusPUBLIC

Content hashes

Canonical text16a69928c6ed284b904540e39d74bb22df08a3161d07d1a3b192ddb5080dbf5a
Markdownb05313a63bd420ffba4430f9ab0a76ca58636eee6450cc4078b2e30591aaf31e
PDF
Publication page2d44cb6d4661c3b0a9c79a260cf4e384a08dd0c41b7777276ff56f7121276a67
Manifestba8bed4d37f1e6facdb15fe56401be7201687da29d6cd28d51e410c2ea73efd6

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
Signature87/hf6HY4zW5eaGsMFJecVDBbPjg5VId1xIDIPkkz5r3s6z6ag8iD+5X8fu170lT13YMInZTGwDXrmf40F7nAg==
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

2026-09-17T09:59:31.451170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081509
observed 2d44cb6d4661c3b0a9c79a260cf4e384...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:31.433502ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081509/manifest.json
observed ba8bed4d37f1e6facdb15fe56401be72...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:31.416837ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081509/publication.md
observed b05313a63bd420ffba4430f9ab0a76ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:31.399199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081509/publication.txt
observed 16a69928c6ed284b904540e39d74bb22...
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.