OpenTechnical

OT-2026-000022531

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, two stage ejector, 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-2026-000022531) never changes.

Identity and time

Publication numberOT-2026-000022531 · never reused
Internal UUID01a0ae6f-f4fe-718e-9380-66b0d31c0002 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022531
StatusPUBLIC

Content hashes

Canonical text9032b711e1f4d97a8c0bc2765b337861dec6577e44badac94b27e005f419933b
Markdown97eaa9bea916282d50799309ced6dcdbca693cf0fba5352c1922601902363728
PDF
Publication pageb1ad4364555487f5993ffd65a6749897e380a6d09477047c426fd85092f1c5d8
Manifest3a7ea7ae03c400835aecedb2024417fdaa0e2915644082d7a94e122b345158f2

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
SignaturesyRaMncULEUtzgsy74QjgLB6CUus+LP+9jZW4df6EeJ37L7z68LnI26PCpuomt/kFRw+OC8N480NrP05WSsZBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:53:57.877598ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022531
observed b1ad4364555487f5993ffd65a6749897...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:57.859255ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022531/manifest.json
observed 3a7ea7ae03c400835aecedb2024417fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:57.840480ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022531/publication.md
observed 97eaa9bea916282d50799309ced6dcdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:57.822792ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022531/publication.txt
observed 9032b711e1f4d97a8c0bc2765b337861...
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.