OpenTechnical

OT-2026-000087589

Publication integrity record

Four cup vacuum gripper, four zone face, two stage ejector, supply line pressure sensor, sustained blow-off before set-down

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-2026-000087589) never changes.

Identity and time

Publication numberOT-2026-000087589 · never reused
Internal UUID01a0ae9a-cd52-7151-bd09-c66a684c14ab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087589
StatusPUBLIC

Content hashes

Canonical textfe12d3473d3f0f19a08940e824f7b15d1172d3e5313508144824e1b1a2e46eab
Markdown450d0427d04c23650497f03c68d62b45784b90495261ccb5f9ee202ca4611b8d
PDF
Publication paged607ecf3717a4cf0624fe74d60901ced3f2d7806f823c35b25424469acafde70
Manifest1fa7e271a3a779b6af734d6d496a487337e65df34cb9cb485a72a339b85fc778

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
Signature5J87hK998LwXD7Z2irbfFVlwrXwjIhb3I9JW1jE611kMkBKkMqsR1h42fmMdjF947zwEvl93gN6G1XLzMWBDCQ==
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

2026-09-17T09:51:01.480245ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087589
observed d607ecf3717a4cf0624fe74d60901ced...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:01.462443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087589/manifest.json
observed 1fa7e271a3a779b6af734d6d496a4873...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:01.443464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087589/publication.md
observed 450d0427d04c23650497f03c68d62b45...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:01.424653ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087589/publication.txt
observed fe12d3473d3f0f19a08940e824f7b15d...
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.