OpenTechnical

OT-2026-000090381

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three stage ejector, pressure sensor per zone, sustained blow-off before set-down

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-2026-000090381) never changes.

Identity and time

Publication numberOT-2026-000090381 · never reused
Internal UUID01a0ae9c-7f2d-7356-a3bd-c1c41f0cf759 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090381
StatusPUBLIC

Content hashes

Canonical text296d9b6fb9b9399560d4c355e1b67955eea9cd498a3cc296828eb04886509c6f
Markdown204990c8170456dcc9a7eb9b04f357496c328bd6cb277a28b4ae8e008fe52a43
PDF
Publication page6560888ce73cc7240bc15378a074859dddea95266b589ecc49efcbda9c3a7389
Manifestd3f70082418605c2d42db06fed6919a313fde2b043feb88012eee162bcb9c0e8

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
SignatureAbQrHyD0+2tQaP/tlT9BtjPw008JdjHyuEqVGIm7w14K78G++YObdrNqOaAVKwzjCDDSEC0X0iK8dppllUiBBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:44:29.216349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090381
observed 6560888ce73cc7240bc15378a074859d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:29.198054ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090381/manifest.json
observed d3f70082418605c2d42db06fed6919a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:29.179538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090381/publication.md
observed 204990c8170456dcc9a7eb9b04f35749...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:29.161415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090381/publication.txt
observed 296d9b6fb9b9399560d4c355e1b67955...
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.