OpenTechnical

OT-2026-000031293

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, pulsed blow-off after set-down, on a tool changer

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-2026-000031293) never changes.

Identity and time

Publication numberOT-2026-000031293 · never reused
Internal UUID01a0ae74-87ac-7f0d-a19d-9cac3c552d6d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031293
StatusPUBLIC

Content hashes

Canonical texta282781719ef25388940993492b0fd69641421b668a011885ca27f83f0b43274
Markdown0eb392e2dd7d5f2dd19f7dd7e17a2a725e095c5ae66f8cce51039af6b920fd1f
PDF
Publication pagedf866f891a69b7fb0a063a45401f67a177e36340c197fb7815e334ec39400586
Manifest30bec45fc1366dee64946da6d0bc19f73f55524881d9bb3c6fc2447369887b79

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
Signature2Bl0Qw/irtNlXL6W1h9NsB/QIs9Sf7fzZu8H9B0VEdEgj4QXGJm51sz0UbvbL2hwIZu6UXbFOl60LP2BOdZtCQ==
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

2026-09-17T11:35:52.714550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031293
observed df866f891a69b7fb0a063a45401f67a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:52.696360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031293/manifest.json
observed 30bec45fc1366dee64946da6d0bc19f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:52.678161ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031293/publication.md
observed 0eb392e2dd7d5f2dd19f7dd7e17a2a72...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:52.661793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031293/publication.txt
observed a282781719ef25388940993492b0fd69...
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.