OpenTechnical

OT-2026-000006048

Publication integrity record

Porous face vacuum gripper, four zone face, pump fed, pulsed 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-2026-000006048) never changes.

Identity and time

Publication numberOT-2026-000006048 · never reused
Internal UUID01a0a94d-9080-795b-bdf2-dfd0dfd6fcb3 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:20:27.906773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006048
StatusPUBLIC

Content hashes

Canonical text6629e5dee1eb0291c494abe351f899b7b7e2f52cdc3df640a254db5125c91bbe
Markdown0cf4f050dc43b516f17d8ac18fa5148af2cebc9d493e9f0be3ff569de03d3150
PDF
Publication page4dbd6de39e125e139307bfd1e50ff1f8f9b60b6f350993dd29d5cb1d1974a8ff
Manifestaff440600bed678099b067c9000c3179faab2593e07a830ac78313dd31ecb76b

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
SignatureSfv30xsyV/NucDC7AS2JpxROzSSG9vOLm6Cs1U+iL9hJurVHZAUi7olCBYfiOGJlHnOMV54RRWvXDlh2n2WxCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:30:33.463367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006048
observed 4dbd6de39e125e139307bfd1e50ff1f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:33.448672ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006048/manifest.json
observed aff440600bed678099b067c9000c3179...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:33.433478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006048/publication.md
observed 0cf4f050dc43b516f17d8ac18fa5148a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:33.420603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006048/publication.txt
observed 6629e5dee1eb0291c494abe351f899b7...
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.