OpenTechnical

OT-2026-000087944

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, plant vacuum fed, supply line pressure sensor, 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-2026-000087944) never changes.

Identity and time

Publication numberOT-2026-000087944 · never reused
Internal UUID01a0ae9b-1aa6-7389-af88-cfd12781e9a0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087944
StatusPUBLIC

Content hashes

Canonical text9c9b4764940e9a211b11188194084d4cdedba5a221dad962621d5982d178b7b4
Markdown88e5e382fb44533367d01bd84ee40db948266ab01d204123e15c6548abb54bca
PDF
Publication page7ca234c51408db8e77970ffea5722f880994eb630cf4946bb7d712d4008213c6
Manifest93972d553238bd7012049ef9b3169638da6b0005895e2bd782c87b3e06c11b58

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
Signaturex7laMjV59x2wrQ45LZk3MJfTamwG+pk3iuTI5Yn5QRWWJr4leq538X/+n18KLV40Glcl1esqy+LIqZPWPh4ADg==
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

2026-09-17T09:49:10.257171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087944
observed 7ca234c51408db8e77970ffea5722f88...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:10.239422ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087944/manifest.json
observed 93972d553238bd7012049ef9b3169638...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:10.223425ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087944/publication.md
observed 88e5e382fb44533367d01bd84ee40db9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:10.203612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087944/publication.txt
observed 9c9b4764940e9a211b11188194084d4c...
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.