OpenTechnical

OT-2026-000041649

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, sustained 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-2026-000041649) never changes.

Identity and time

Publication numberOT-2026-000041649 · never reused
Internal UUID01a0ae79-e8a0-7e79-b0d6-ec66731d67c2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:00.220789Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041649
StatusPUBLIC

Content hashes

Canonical text9caedd4fb84918a10173a39d37c5c0ed6dec318899552e4923781aa0b9a45942
Markdown33b090ea80be54e63a19c94a98a901d7740aefdea770bcd06fccc79d4a437f18
PDF
Publication page72902d3801d49f42147bae6aff3b6afa921b0b5989f966fb6e26072562ca35f8
Manifest69d325025af163249c1f7b051f8c3b02d97baca2bf8838cc93f2cbfcbc4999ae

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
SignatureOcIcqQTaz2AO9X81iymH6KH7ShMNjsxW+SJn/VYUmqcyLkEzlKAXNPIUNYP0JhfoBTI4nqwdQglc4JzteQoSBQ==
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

2026-09-17T11:16:27.109565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041649
observed 72902d3801d49f42147bae6aff3b6afa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:27.092257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041649/manifest.json
observed 69d325025af163249c1f7b051f8c3b02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:27.074736ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041649/publication.md
observed 33b090ea80be54e63a19c94a98a901d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:27.058331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041649/publication.txt
observed 9caedd4fb84918a10173a39d37c5c0ed...
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.