OpenTechnical

OT-2026-000043002

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, common isolation valve, pump fed, sustained blow-off after 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-2026-000043002) never changes.

Identity and time

Publication numberOT-2026-000043002 · never reused
Internal UUID01a0ae7b-3277-7de5-b24e-f6ca2c0b5c83 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043002
StatusPUBLIC

Content hashes

Canonical text1e0a0d8b39e9bad7b5af23733da92ca5fac09862825262106deafe8b7904f37e
Markdown69ffcda36fa2e6879a36f73a461efd5c3aa50a00714006c78abffabd6685130d
PDF
Publication page2222bb96c60b66bd4c2b83d6531e3468bf3b618fdb1612e4b535ecca3e6f7d60
Manifest91d662d517299a33603cc0bf1e2c0c4c5f9af4e288045f62e890210658d2d856

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
Signature78Cv1xoPXaZNzdOQZ4jQrWMzSbQdCagodGn0Wd56K3AHpwTJRB3/xnvOmIK8t9ATxM01tC5kK3rWrgKKeI72Dw==
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

2026-09-17T11:13:18.641456ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043002
observed 2222bb96c60b66bd4c2b83d6531e3468...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:18.622433ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043002/manifest.json
observed 91d662d517299a33603cc0bf1e2c0c4c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:18.605124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043002/publication.md
observed 69ffcda36fa2e6879a36f73a461efd5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:18.587985ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043002/publication.txt
observed 1e0a0d8b39e9bad7b5af23733da92ca5...
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.