OpenTechnical

OT-2026-000023449

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, 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-2026-000023449) never changes.

Identity and time

Publication numberOT-2026-000023449 · never reused
Internal UUID01a0ae70-7269-7c3f-afba-53bd4f641807 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:40.056870Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023449
StatusPUBLIC

Content hashes

Canonical textfdba0badd13c0029cbfb4fc4b394360c4ffb3bfee02a94792b005418cb2ac359
Markdown85ed890f374f7c67e39eb0e040f346ba049aa65bf4e39910278e85af06adcbdf
PDF
Publication page86c9c2833136addb2247f5e5f2eaa7a2cdd5ee13d1fc2b00ce3f96145a1a59b7
Manifest9a650e4846692f022e9396899caa23d2f894273d00f494dd1b4945889d1c270b

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
Signaturemeb66r9afbJR7AQv4n8Ff7IxIyscjCHhOVzJTDV0dlJ4jla/gr1WizUjNoUAkO/7u+J8foN2UZAFoP3e7Ur4Bw==
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

2026-09-17T11:51:39.981751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023449
observed 86c9c2833136addb2247f5e5f2eaa7a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:39.964610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023449/manifest.json
observed 9a650e4846692f022e9396899caa23d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:39.945907ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023449/publication.md
observed 85ed890f374f7c67e39eb0e040f346ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:39.927822ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023449/publication.txt
observed fdba0badd13c0029cbfb4fc4b394360c...
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.