OpenTechnical

OT-2026-000080223

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, three stage ejector, 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-2026-000080223) never changes.

Identity and time

Publication numberOT-2026-000080223 · never reused
Internal UUID01a0ae96-7e76-74ef-8712-e49faac2cc24 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:13.512436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080223
StatusPUBLIC

Content hashes

Canonical text6381dd219846a7027d2ddc74714b4e8c963887916f71731e39ee18c9054ab477
Markdown1313d82d0d732983662ec0254ee05712b583804853926610ef4cae0f3e02778b
PDF
Publication page8610a7cf19c6398717f9d03307ac9ba82ff37de1132b2d2631d0d4d228ad2e3e
Manifest90d7a720fb3c086403bcd451dd70c3fe43962f8f3e29bac67d37af255f709619

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
SignatureYiuwO7xz4NgI/HDBkjOxcM6hkuKY8eGyA3fn6u3d/1TWWW7DiYHUo9xXsCW1B197/gf3yyB2nxOeIOFHXzAVCw==
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

2026-09-17T10:02:40.663097ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080223
observed 8610a7cf19c6398717f9d03307ac9ba8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:40.644368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080223/manifest.json
observed 90d7a720fb3c086403bcd451dd70c3fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:40.625487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080223/publication.md
observed 1313d82d0d732983662ec0254ee05712...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:40.607662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080223/publication.txt
observed 6381dd219846a7027d2ddc74714b4e8c...
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.