OpenTechnical

OT-2026-000086981

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, pump 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-2026-000086981) never changes.

Identity and time

Publication numberOT-2026-000086981 · never reused
Internal UUID01a0ae9a-80a5-7d9d-a2d3-ab784acffcfb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:36.209195Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086981
StatusPUBLIC

Content hashes

Canonical text0790859a51748540f75f9dbe55a6a6797238d0b6a965f598f0ff842de2bd12e6
Markdown5c33b72a86f3d901861eaf8e9858ec645e0fd258e0dfa16748b0832fdede1c07
PDF
Publication page696886bd90150cbab6799bf111c9a09f08a02e15e58cc8d1cfae9bf126540a9b
Manifest1cc245a190e755ce16a622dd6e0aa0715289f6099c131118b260a90babffb97c

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
SignaturebK41PqRDPZTiyGSh4IDWH+LzOvMitaSVDx899X/BZ/tBRL2wDqv0oIbUn3Kj3NSsARlubo7h/6UcQ+m4BVA0BQ==
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

2026-09-17T09:51:52.852589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086981
observed 696886bd90150cbab6799bf111c9a09f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:52.834312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086981/manifest.json
observed 1cc245a190e755ce16a622dd6e0aa071...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:52.816174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086981/publication.md
observed 5c33b72a86f3d901861eaf8e9858ec64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:52.799451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086981/publication.txt
observed 0790859a51748540f75f9dbe55a6a679...
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.