OpenTechnical

OT-2026-000047987

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, three stage ejector, pressure sensor per zone, 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-2026-000047987) never changes.

Identity and time

Publication numberOT-2026-000047987 · never reused
Internal UUID01a0ae7f-c422-7e84-a2af-2539332f9ac5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047987
StatusPUBLIC

Content hashes

Canonical textefc197b892aaa8bbac3d3dcd6811f6a8c1470d982a5f5a3ca3ef58b835963dc0
Markdown1381e4b451af8a311f723cc7b3da93a25c0e67982f13894866092dca7951003e
PDF
Publication pagef0d8dd9d8ef670507f78412b382af5198228cd799121fd5afc161662a7d0c05d
Manifest536e8cd2363754c1cf8f70a0799e776b74921b5f45dc4d02cf92c2717a861bcd

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
SignatureyMLFSeyRyQQgUQ3+Jm6Z6bFVpweFYH+2RazjhuaRfeZQu2C2svig9BuPBhMfeQFytd5YRHMR50osiECWyBmqDw==
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

2026-09-17T11:05:58.191202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047987
observed f0d8dd9d8ef670507f78412b382af519...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:58.171865ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047987/manifest.json
observed 536e8cd2363754c1cf8f70a0799e776b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:58.154227ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047987/publication.md
observed 1381e4b451af8a311f723cc7b3da93a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:58.135427ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047987/publication.txt
observed efc197b892aaa8bbac3d3dcd6811f6a8...
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.