OpenTechnical

OT-2026-000103439

Publication integrity record

Two bellows cup vacuum gripper, two zone face, plant vacuum fed, pulsed blow-off after 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-2026-000103439) never changes.

Identity and time

Publication numberOT-2026-000103439 · never reused
Internal UUID01a0aea4-e460-7d91-a18b-0fdce51b458b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:57.105586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103439
StatusPUBLIC

Content hashes

Canonical text69658f45c07d30e2063ecd61104e5b49edc783484a3aaf6225a2dd29df272613
Markdown2b78cb99077bf88f3978c664cb403218e0be8d35f2db637943c7d5ee2ee7d8ea
PDF
Publication pageec24497cd7ad7b7181d185c34d7afd2a0e8c3d88f30556ea6ccece20a804b9dc
Manifestb53842b59b1cadad2d6ccaf4f63c3085f6ccc7041901fb335d506b4c7831d00f

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
SignaturekLKhyDGb/V4ALUW8Qot7QJ5/UrBIQId8v+jILVGTxulr1UaXsDZx1Pc5KcfMtXF1TpJjQIT46zhm83KHsk9OCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:22:11.573606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103439
observed ec24497cd7ad7b7181d185c34d7afd2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:11.556948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103439/manifest.json
observed b53842b59b1cadad2d6ccaf4f63c3085...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:11.539916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103439/publication.md
observed 2b78cb99077bf88f3978c664cb403218...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:11.522293ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103439/publication.txt
observed 69658f45c07d30e2063ecd61104e5b49...
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.