OpenTechnical

OT-2026-000064591

Publication integrity record

Four bellows cup vacuum gripper, four zone face, single stage ejector, pressure sensor per zone, pulsed 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-2026-000064591) never changes.

Identity and time

Publication numberOT-2026-000064591 · never reused
Internal UUID01a0ae8d-deb7-785a-a5e0-74c8e7d6234a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:48.495161Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000064591
StatusPUBLIC

Content hashes

Canonical textf608dc2036d4a97df0175086b1e04defcdabbc1e91f376d3bfe74c0d7d157424
Markdown43d6adcdcf69689bdb63ce0d940ffa8c0c7ec0007f851b7f3e00574b38e9ddf9
PDF
Publication page31fdedb59e05dab9e388fea11cf3d234ff08a2f0b2965fe577fb53c3391fe955
Manifest18c927f5c841091ac932ea62622ec0a70afa9374642fabdce8717de13067ccb2

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
Signaturel1lm3XP5dVPqxAxT+Tn+B9VlUt9q0XXqqV+oWQCAEJ6iI3nPICdsTCe3UwsjiubJubPJmHC9n7fOkY3HIDl5Bw==
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

2026-09-17T10:35:21.806198ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064591
observed 31fdedb59e05dab9e388fea11cf3d234...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:21.787384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064591/manifest.json
observed 18c927f5c841091ac932ea62622ec0a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:21.770503ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064591/publication.md
observed 43d6adcdcf69689bdb63ce0d940ffa8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:21.752609ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064591/publication.txt
observed f608dc2036d4a97df0175086b1e04def...
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.