OpenTechnical

OT-2026-000090372

Publication integrity record

Three cup vacuum gripper, three zone face, two 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-2026-000090372) never changes.

Identity and time

Publication numberOT-2026-000090372 · never reused
Internal UUID01a0ae9c-7f2d-7231-b760-92d18ed08683 · 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-2026-000090372
StatusPUBLIC

Content hashes

Canonical text5564c6185d6e6bcf6434692cfd391db843b9dc79187883c4ef0873f6a0883cec
Markdown6af4b60ebaafa8e96343b6ae5a911db7e99244e277f80987ee35a3a3b7826bbe
PDF
Publication page2f1e0e2ecae5c6b1176829708d20370a4b432fc044b8689fc51b57161410f669
Manifest7ddd19a2c377f1d2c98b9b384cf4ea33c7f4d93decd683f7f4bc4dc42c504296

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
SignaturepSNvdHwdCqyu75TnNBgRcVAJcU7yc8OUmeXwoj7oUAPA495nDwM2aWdgxfKuPYIgRz0RXgwLPi6mr4Q2QnPQCQ==
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

2026-09-17T09:44:28.514727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090372
observed 2f1e0e2ecae5c6b1176829708d20370a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:28.498220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090372/manifest.json
observed 7ddd19a2c377f1d2c98b9b384cf4ea33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:28.479518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090372/publication.md
observed 6af4b60ebaafa8e96343b6ae5a911db7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:28.461790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090372/publication.txt
observed 5564c6185d6e6bcf6434692cfd391db8...
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.