OpenTechnical

OT-2026-000029227

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, two stage ejector, 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-2026-000029227) never changes.

Identity and time

Publication numberOT-2026-000029227 · never reused
Internal UUID01a0ae73-2aa0-7033-af80-313e5fee1858 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029227
StatusPUBLIC

Content hashes

Canonical text294b8d4b26e030153100da5c83afcf772f0806e1f16d217a12fa86d759e5d546
Markdown6105bdae0249bb02b8132997acd2a110f025d4223c097455046d9af178d6c1bc
PDF
Publication pagef77d62a37e3ad78a21bd0b718a27797d66ecfb03015f8f2cd52e1b701c0999f8
Manifest14d9f225f91b117737777f4edacb031d07d2304581de451b8b28cd071e0bae62

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
SignatureHun3EYaD1lhCX1SZLWHYmfdt65P0SvXG41G3grHrA3ZpYE39qxqpZ4+0ggnROGqMAlmixYAl9WtV0+yC7ox6Cw==
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

2026-09-17T11:39:51.007907ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029227
observed f77d62a37e3ad78a21bd0b718a27797d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:50.986396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029227/manifest.json
observed 14d9f225f91b117737777f4edacb031d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:50.961575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029227/publication.md
observed 6105bdae0249bb02b8132997acd2a110...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:50.943462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029227/publication.txt
observed 294b8d4b26e030153100da5c83afcf77...
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.