OpenTechnical

OT-2026-000018993

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, two stage ejector, manifold 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-2026-000018993) never changes.

Identity and time

Publication numberOT-2026-000018993 · never reused
Internal UUID01a0ae6e-d523-7fb8-9787-bd78b3b0bf49 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018993
StatusPUBLIC

Content hashes

Canonical text3903af5a8654b151c6ed795dad41c1308f274101b5c0cb1d473766cdf93dbe1e
Markdown187df6e2cc476da4e5e15ed55644d7fabaffcd15791d04820afd3b20921032a9
PDF
Publication page21b556a11db00773837c63bdb3a2cebc3d10ac378c45ed6866bb0bd19de963e2
Manifest4f3f1e2c91d820758b0869e42fa1ff37714222752f8e95bd3e4916c30cd02458

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
SignatureKt99P+iAKsOb/2iCExZjQF8wlGqoPxhzb7uzrHajpTrp7AcduIMtGpD1UkbGOnzhG0S0IbSFC+UtTmBxMQwnBA==
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

2026-09-17T11:59:40.570601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018993
observed 21b556a11db00773837c63bdb3a2cebc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:40.554016ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018993/manifest.json
observed 4f3f1e2c91d820758b0869e42fa1ff37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:40.536887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018993/publication.md
observed 187df6e2cc476da4e5e15ed55644d7fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:40.517667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018993/publication.txt
observed 3903af5a8654b151c6ed795dad41c130...
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.