OpenTechnical

OT-2026-000019857

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, 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-2026-000019857) never changes.

Identity and time

Publication numberOT-2026-000019857 · never reused
Internal UUID01a0ae6f-1fb6-7e38-97d0-f15061b7a7eb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019857
StatusPUBLIC

Content hashes

Canonical text50bad11df4830da08a43b0804b32c7c813b4a9ad08a89886641971d84c99d634
Markdown3d3e8c1f55a28279a017c493795f48f647a901e1e390d680651e290966ee74c2
PDF
Publication paged3f1e3ca15164f066a2e1f99ec7d7c6d1ba447e9535ac31f0252b6fb3e65d930
Manifest2b409c6ec8d0dec5d043ef914da93339bf2fb013909c138e62ad1b54e4dc1dc4

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
Signaturem95WM07yvmR9b7f5sdUjpC05yM52iSCA6bQIeFvcsJsbSiMaxSdz8zmhQTYcXz2Oj+bCA4A7sH/M4byspvSHBg==
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

2026-09-17T11:58:02.729330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019857
observed d3f1e3ca15164f066a2e1f99ec7d7c6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:02.709520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019857/manifest.json
observed 2b409c6ec8d0dec5d043ef914da93339...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:02.690392ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019857/publication.md
observed 3d3e8c1f55a28279a017c493795f48f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:02.672830ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019857/publication.txt
observed 50bad11df4830da08a43b0804b32c7c8...
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.