OpenTechnical

OT-2026-000058749

Publication integrity record

Two cup vacuum gripper, two outlet manifold, pump fed, manifold pressure sensor, vented 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-2026-000058749) never changes.

Identity and time

Publication numberOT-2026-000058749 · never reused
Internal UUID01a0ae89-479c-72e2-a374-93ded39c9ebc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:43:47.568543Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000058749
StatusPUBLIC

Content hashes

Canonical text12ef2c348574fe2a69f23fed04e147a72042a712d1794478b3779c1ad236155e
Markdown62876249828d1ba142a90028003d2d05349fee5f7a61553956141f316bde1a6e
PDF
Publication page5c537c302d80f06177b3fb0ac3442695f89504b47c85874b9a9ccb68a1604e40
Manifest3a0db7249adce5b3712db316ce6589d421551ea6840a6ffb0af3f357837880f0

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
Signatureqr3mQsp5Fiuk0HnYiFMVfMGJ+R/Ay27DkilxSglJ8djH7umXbKLtdyxLQKt0gqLtn0PSkI/UbNANzw/+HYcOCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:46:15.142374ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058749
observed 5c537c302d80f06177b3fb0ac3442695...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:46:15.124078ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058749/manifest.json
observed 3a0db7249adce5b3712db316ce6589d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:46:15.107470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058749/publication.md
observed 62876249828d1ba142a90028003d2d05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:46:15.089498ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058749/publication.txt
observed 12ef2c348574fe2a69f23fed04e147a7...
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.