OpenTechnical

OT-2026-000073472

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, vented 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-2026-000073472) never changes.

Identity and time

Publication numberOT-2026-000073472 · never reused
Internal UUID01a0ae92-efb8-7c88-b0d2-5ed2a37ed212 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073472
StatusPUBLIC

Content hashes

Canonical texte5b2ee82a760c9e428906b858de12f9f9dbafbd4132754245aef9006f7f460c2
Markdown8e4bf6bfa78ac32d5d749d10a27bf2c052746a9946f5c6a62917e99ea98735b1
PDF
Publication page9b9f9d8707777eb68a84877fdb57a5922e931da1acd7e86fde74f3c5d5902605
Manifestadcd0b567439391b703e5006526e106c5cd7a3cf5234eded82d87263bb95f505

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
SignatureKXWRlD9945uf1cpHCakgQ54+q5xnNxr3ZWXqFH05GCfI9K2N1xPCuWaffiw8/OldEwJ+Wr84GhTIJuutZXs8CA==
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

2026-09-17T10:21:38.356503ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073472
observed 9b9f9d8707777eb68a84877fdb57a592...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:38.335809ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073472/manifest.json
observed adcd0b567439391b703e5006526e106c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:38.317520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073472/publication.md
observed 8e4bf6bfa78ac32d5d749d10a27bf2c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:38.298449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073472/publication.txt
observed e5b2ee82a760c9e428906b858de12f9f...
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.