OpenTechnical

OT-2026-000015328

Publication integrity record

Single bellows cup vacuum gripper, pump fed, 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-2026-000015328) never changes.

Identity and time

Publication numberOT-2026-000015328 · never reused
Internal UUID01a0ae6d-ef49-7ff7-8cca-fffa14932f39 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015328
StatusPUBLIC

Content hashes

Canonical text43a6c1fdb50bd7b9b991c49572e38f4b4f51f26825b3697ec41cdbfaba966245
Markdown4ddbb225350bc7b9dfb9bc1473ce953a56674d44813290f23b330afc7cd12f30
PDF
Publication page45a98c3505b6af13eda56313a502c2a2c8bd82e8a32df4ed9121b4f50caf2644
Manifestec40a5dd9e5f8342157a41b7a56cedecc486766c536f97a2cb6cd49774b2b8ce

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
SignatureXjOSkDAV9tW8Ak5psCmatNYl5l9EO0+0heHrJ06fa8Vw62ndEUt31G4eJPTI0GnPjbah1c+CHyux70AOHaDPCQ==
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

2026-09-17T12:06:01.612410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015328
observed 45a98c3505b6af13eda56313a502c2a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:01.594052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015328/manifest.json
observed ec40a5dd9e5f8342157a41b7a56cedec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:01.573948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015328/publication.md
observed 4ddbb225350bc7b9dfb9bc1473ce953a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:01.555345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015328/publication.txt
observed 43a6c1fdb50bd7b9b991c49572e38f4b...
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.