OpenTechnical

OT-2026-000026632

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, sustained 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-2026-000026632) never changes.

Identity and time

Publication numberOT-2026-000026632 · never reused
Internal UUID01a0ae71-f4aa-7f95-aeaf-94671dae3e24 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026632
StatusPUBLIC

Content hashes

Canonical text92f6731b32bfb9135087db70ef642ac4ae70e95eb858d8844e58d166d819d21a
Markdown2dd607af53f29846256bfed6f74d5b0644233f533d89fa577ff299c3094f67e3
PDF
Publication page3c53d74797d38a98405704389386e35ac856d6b3b926841d26fcabcbad4d712b
Manifest46dd65901ee63ac9fa83ecad104b66c33582f44221fb0e43b7fe49a579a28e65

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
SignaturehVqx1VxAZECYc8lUQ6glIp9wpMFQpICNtQQM95425Y4EvM3t2IHf9c1PXYhn7U/RyTJMSYQ/lxznMIHZ4tZcCw==
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

2026-09-17T11:44:26.368820ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026632
observed 3c53d74797d38a98405704389386e35a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:26.353575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026632/manifest.json
observed 46dd65901ee63ac9fa83ecad104b66c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:26.333011ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026632/publication.md
observed 2dd607af53f29846256bfed6f74d5b06...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:26.304213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026632/publication.txt
observed 92f6731b32bfb9135087db70ef642ac4...
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.