OpenTechnical

OT-2026-000028467

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, 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-2026-000028467) never changes.

Identity and time

Publication numberOT-2026-000028467 · never reused
Internal UUID01a0ae72-e2f6-73fa-b288-5615bc85daff · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028467
StatusPUBLIC

Content hashes

Canonical textf2500dd91f4a9f13127caa162341bae6b878edf041db0989178f6e2146edc9e7
Markdowna49ba5b93af0783cdeb26cc08b8e5fdfd0b7b27402dd75beda63037d008d1d8c
PDF
Publication pagee02631b5aea111a5402037ff678f545b8db1ef652dfab9545fb52526186c40fb
Manifestaffca5e1325876b957c6510217e404406168a5b1a441e4683b9eee0ce21e13bb

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
SignaturexzAnG9vnnCnpSAkdAYiR8q5bkHq60qoUw0wGSoxOn61roep6GPn7mU6dozBE6kO65V/CE39srpg9O2R6a+taAg==
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

2026-09-17T11:40:36.612392ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028467
observed e02631b5aea111a5402037ff678f545b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:36.594451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028467/manifest.json
observed affca5e1325876b957c6510217e40440...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:36.578152ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028467/publication.md
observed a49ba5b93af0783cdeb26cc08b8e5fdf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:36.561584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028467/publication.txt
observed f2500dd91f4a9f13127caa162341bae6...
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.