OpenTechnical

OT-2026-000049917

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, manifold pressure sensor, 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-2026-000049917) never changes.

Identity and time

Publication numberOT-2026-000049917 · never reused
Internal UUID01a0ae81-fd76-7323-bcc3-6888c10bf118 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:49.774136Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049917
StatusPUBLIC

Content hashes

Canonical text75da1f0687f94757175f27dc3f75b6f6c0735ac65b788873f72a7c45f83326be
Markdown851c8c7663b5c3f1008d66d90fb74a604ad9da63f980d909954037555269da0a
PDF
Publication page1f5056586249c3dad3e59a1d32d1deaf3e334f6b5e22e593755739ec68875217
Manifest9e279105396a0208b554d0733c7e1f0470574cf022d66237af7fb27036e617b3

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
SignatureeiBFIMhPYz2bW0ik8585kCr8wTaly7mDuNxx1go+QCMSOvnOdLfVP+9Z+lHmLUsAJWJWJJaZTkHPrJ+LyqiWDA==
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

2026-09-17T11:01:50.592583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049917
observed 1f5056586249c3dad3e59a1d32d1deaf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:50.572992ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049917/manifest.json
observed 9e279105396a0208b554d0733c7e1f04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:50.547850ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049917/publication.md
observed 851c8c7663b5c3f1008d66d90fb74a60...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:50.528557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049917/publication.txt
observed 75da1f0687f94757175f27dc3f75b6f6...
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.