OpenTechnical

OT-2026-000029659

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, single 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-2026-000029659) never changes.

Identity and time

Publication numberOT-2026-000029659 · never reused
Internal UUID01a0ae73-5e23-7f0f-a4d5-3d57206b9332 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029659
StatusPUBLIC

Content hashes

Canonical text4466b10cac5fa722b51d68b2ef5c415fa106bc4090d8bc30b175ea92fc325645
Markdown9b50448aa2bc9d7a92135dd21db8063653039a457dfe70e5ab49ee656f0dd619
PDF
Publication page2a582155c5bc08a2f17feebe03989a996620b0905f30a3a01e0eec2254b95072
Manifeste445ba1947f2b9e131f25cd052f9b79b4bd7826a659365525554932fff86281f

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
Signaturer2tTXJR2C4P6vWom2gz6c8gaV4K1/bO+TyLFmQD+PtPxBsmCvp0vybU1BDFpG6NoAwMO5TkNYYYTcVXN7lGGCQ==
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

2026-09-17T11:39:22.489791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029659
observed 2a582155c5bc08a2f17feebe03989a99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:22.470125ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029659/manifest.json
observed e445ba1947f2b9e131f25cd052f9b79b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:22.451098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029659/publication.md
observed 9b50448aa2bc9d7a92135dd21db80636...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:22.434512ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029659/publication.txt
observed 4466b10cac5fa722b51d68b2ef5c415f...
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.