OpenTechnical

OT-2026-000027499

Publication integrity record

Four cup vacuum gripper, four zone face, single 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-2026-000027499) never changes.

Identity and time

Publication numberOT-2026-000027499 · never reused
Internal UUID01a0ae72-6998-7e78-81b2-206cddf29dbe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027499
StatusPUBLIC

Content hashes

Canonical text88e150c5045f0f803ac27302eee18b7c3e0f8390a063067d6b82a443a99fa396
Markdown39a286e8a1883cbeb867149280545efbeb20d2f5969143e808a4423a7aa055f2
PDF
Publication page439828b090200f1b91376557089f9494ac66c685ec46b10c975bca67f9b152dc
Manifestfd2e52c2d37a2ea59351c3b35ac8f6ebb4b395c58c1b02cb7d5b7e7781a0d15c

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
SignatureFddlG0HbyFWphsFwCwXgUqFH5jfXWn3WiVMjI24NsbzbVHW4vuJKVw7ESe64elMRlnyzvJwUoov/nWa2cYVtDg==
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

2026-09-17T11:42:58.119157ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027499
observed 439828b090200f1b91376557089f9494...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:58.101527ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027499/manifest.json
observed fd2e52c2d37a2ea59351c3b35ac8f6eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:58.083654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027499/publication.md
observed 39a286e8a1883cbeb867149280545efb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:58.064518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027499/publication.txt
observed 88e150c5045f0f803ac27302eee18b7c...
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.