OpenTechnical

OT-2026-000019649

Publication integrity record

Two cup vacuum gripper, two outlet manifold, pump fed, supply line pressure sensor, 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-2026-000019649) never changes.

Identity and time

Publication numberOT-2026-000019649 · never reused
Internal UUID01a0ae6f-1fb3-714e-9314-5281989af242 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019649
StatusPUBLIC

Content hashes

Canonical text468050ccee4fff8c4149de4314d08988be535e1c5e38e47a0bd2590300da99bc
Markdown028b7be956e95cc3fd6d492b1afef3853b37bb1b480f5e5ea6e5a25507e0e487
PDF
Publication pagebf7f2d0a68b4775416f50de43547bbc7968ef62a1531d35387f72818da77f393
Manifestd8d5ac65eaf8e246abca973d727adae3eea5184be94e0771d6ad7607f093c89f

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
SignatureWU2eNfFGqFrQY2AzphSIlKPWO8mgnWgzUCkAqtBhB4sjmjMiTEAzomRDZlOTCRm8OTKitlpBUNPXgDhFFJd8Dw==
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

2026-09-17T11:57:42.687745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019649
observed bf7f2d0a68b4775416f50de43547bbc7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:42.671191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019649/manifest.json
observed d8d5ac65eaf8e246abca973d727adae3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:42.655488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019649/publication.md
observed 028b7be956e95cc3fd6d492b1afef385...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:42.638498ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019649/publication.txt
observed 468050ccee4fff8c4149de4314d08988...
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.