OpenTechnical

OT-2026-000025287

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, pump 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-2026-000025287) never changes.

Identity and time

Publication numberOT-2026-000025287 · never reused
Internal UUID01a0ae71-5fa6-70f4-b990-14acc68230cd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025287
StatusPUBLIC

Content hashes

Canonical textcb318d829b0fe33f2ac103b93bd3c0646b1371468e82533a9f30275b803237b8
Markdown13e20536cea26eec46c59084f4992d0c9f93b981fc6bfc0dc896fa9ca618a309
PDF
Publication pageedd2bf30fe15d1b7ae78c2e0350e0f207402eaa9d38983876ccf4ee8ecb04ff0
Manifest2d5539c2fab2e48ecba57788d1f1610ab501a2e9b6468c0f92632a3c73c8cd4b

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
SignaturerDDFuENWVaTlBPphjXAXR0vJRUq+sRie7eAnW1m6K5dQSB6RaDL6kMwCylCdDtW6usAf/Iy+4N0nfmUqcgZSCA==
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

2026-09-17T11:47:17.972586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025287
observed edd2bf30fe15d1b7ae78c2e0350e0f20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:17.953722ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025287/manifest.json
observed 2d5539c2fab2e48ecba57788d1f1610a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:17.937698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025287/publication.md
observed 13e20536cea26eec46c59084f4992d0c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:17.920460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025287/publication.txt
observed cb318d829b0fe33f2ac103b93bd3c064...
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.