OpenTechnical

OT-2026-000050663

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, plant vacuum fed, 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-2026-000050663) never changes.

Identity and time

Publication numberOT-2026-000050663 · never reused
Internal UUID01a0ae82-c7b0-7656-9aca-0cddf4ce5c91 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:41.548889Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050663
StatusPUBLIC

Content hashes

Canonical text4c878cf9486365906837aedd3ea94bead9d758797e13bb5feb741d097abc7e3f
Markdown406b1831fae361c6b7c5f66e080395f59435ee182a418bf8505a565f36b0403f
PDF
Publication page3c7b4e6bb6c41228f31700235d948c1fc2f2388a5175973cddce23a1f9bbc658
Manifest4edc0ab0a6f492336f8e9d0b5eb6937873770918803cb54bdf1a095f967c2021

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
SignatureGop4N7b4DhkDCpUe/+mq98JCSIEAckBCsOikcSN4p3S4UvfVKb9QFXFn6ezopmK63KX2F5/VQD/FKd6J9jqEBg==
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

2026-09-17T10:59:21.984442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050663
observed 3c7b4e6bb6c41228f31700235d948c1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:21.963788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050663/manifest.json
observed 4edc0ab0a6f492336f8e9d0b5eb69378...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:21.943410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050663/publication.md
observed 406b1831fae361c6b7c5f66e080395f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:21.922100ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050663/publication.txt
observed 4c878cf9486365906837aedd3ea94bea...
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.