OpenTechnical

OT-2026-000019591

Publication integrity record

Three bellows cup vacuum gripper, three zone face, two 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-2026-000019591) never changes.

Identity and time

Publication numberOT-2026-000019591 · never reused
Internal UUID01a0ae6e-f394-70dd-a582-560a7a137a69 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019591
StatusPUBLIC

Content hashes

Canonical texte1eac39094ec4681e7b421ce232f9b09b25df348d5237ce16760950216b8a722
Markdown9626d7fda773ba7094a9b89ab508a414580ebbea62a7f538f0796ae92b4885b4
PDF
Publication page4b79de877a2085bb174e6d849aeb94fc61895a134ef32a51b957df8d084d5015
Manifest43906ac5e802259e7f9184b3a224957f8febe7f342af2fe47df64fdacbd190c4

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
SignatureG7WBG/mQy1P4co79IS9JmNmYvE35CxpxTEZBaUaZL5ZazPz1HmyGKhZCNnhUzqlwn+iyqfpwHXQPK0sGS5pTCA==
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

2026-09-17T11:59:02.539661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019591
observed 4b79de877a2085bb174e6d849aeb94fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:02.519940ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019591/manifest.json
observed 43906ac5e802259e7f9184b3a224957f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:02.502899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019591/publication.md
observed 9626d7fda773ba7094a9b89ab508a414...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:02.484886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019591/publication.txt
observed e1eac39094ec4681e7b421ce232f9b09...
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.