OpenTechnical

OT-2026-000060300

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, sustained 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-2026-000060300) never changes.

Identity and time

Publication numberOT-2026-000060300 · never reused
Internal UUID01a0ae8a-5a74-7c64-b43e-1b68f767da36 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:44:57.976275Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000060300
StatusPUBLIC

Content hashes

Canonical text51138c17e8bfd5a3edfc1d1c050f14897b4ceaed3220b22a9399a084a3d6994f
Markdown0ded835bdfaa41e9a1a679f0fc37ba6a1933b3d6d8b1f3d3dce8b76604c28540
PDF
Publication pagee22a3457bccd8536ecddd9a3e59deea525e76749d1be1d412b850531986df361
Manifest3a94f49ba32738b3646833f2327d5d31f7114182218f963c8ba9fdb794806588

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
SignaturehvixfAm5MS3AEEsRiMCEcDCR+Nrl7d9GDttUu5SWcU8e3UXvYxmzIvqYy/UpIvBuyUku6s/lAJ1MrosyCyGMAQ==
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

2026-09-17T10:44:00.468946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060300
observed e22a3457bccd8536ecddd9a3e59deea5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:00.450934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060300/manifest.json
observed 3a94f49ba32738b3646833f2327d5d31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:00.434170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060300/publication.md
observed 0ded835bdfaa41e9a1a679f0fc37ba6a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:00.416857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060300/publication.txt
observed 51138c17e8bfd5a3edfc1d1c050f1489...
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.