OpenTechnical

OT-2026-000028709

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, three stage ejector, manifold pressure sensor, 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-2026-000028709) never changes.

Identity and time

Publication numberOT-2026-000028709 · never reused
Internal UUID01a0ae72-e2f9-7a7d-bc4b-0a4021f3c580 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028709
StatusPUBLIC

Content hashes

Canonical textfa64f96392242dd18a476dd47bb9c48442189e74984b079bfbe2e46c9bee5f55
Markdown9891eceafba3c62f909b7a3f7f4f24af3034069b7ccb93b7abfce877eb36c92e
PDF
Publication pagef84f0483eab04e1253c97c9f45f95a2e6654e824b785e5592e902add6d085a55
Manifest5f94058972f72292d276b781e5653a291832ed3d4999f49adb4017e0433e4f98

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
Signature8Qp8OjCUgalBw32jQSb8iYsh8lOOuSg6ONQZHCCsgBz1Qsnbxm64nb1eGCyJrMh//Q3JLR81AtJtP5xGG+HCDQ==
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

2026-09-17T11:41:42.639128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028709
observed f84f0483eab04e1253c97c9f45f95a2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:42.618175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028709/manifest.json
observed 5f94058972f72292d276b781e5653a29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:42.597951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028709/publication.md
observed 9891eceafba3c62f909b7a3f7f4f24af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:42.578078ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028709/publication.txt
observed fa64f96392242dd18a476dd47bb9c484...
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.