OpenTechnical

OT-2026-000081101

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, 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-2026-000081101) never changes.

Identity and time

Publication numberOT-2026-000081101 · never reused
Internal UUID01a0ae96-b977-78bb-8ee1-3f27f53e76d9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081101
StatusPUBLIC

Content hashes

Canonical text6df3435f996812d7b74fa50f16a56fecd296cbcbd45f06c3fb5dfe45a31dde58
Markdownf4d9d47a3c6b5da0c2ded3dd1066e35df8d8f244a243334baffed7e90b070ca3
PDF
Publication page218e0afac1ea192ed026c11baa34505dd377aab5500a3b5f3f959175e15f03e6
Manifest5b947747f6c5dcc7c2444d18773ef9126fabd05930c2f12e3637cce045f1ec8e

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
SignaturevgmcFWXKcpDz6qqkTUuhoUZac+NYsHwElI0grkGKYx3UMClgg6s5rYA6QbKnfKwyY+vaPi8xZi74uoDzDkkYBw==
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

2026-09-17T10:02:24.439864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081101
observed 218e0afac1ea192ed026c11baa34505d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.423383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081101/manifest.json
observed 5b947747f6c5dcc7c2444d18773ef912...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.407018ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081101/publication.md
observed f4d9d47a3c6b5da0c2ded3dd1066e35d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.389457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081101/publication.txt
observed 6df3435f996812d7b74fa50f16a56fec...
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.