OpenTechnical

OT-2026-000031245

Publication integrity record

Four cup vacuum gripper, four outlet manifold, two stage ejector, 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-2026-000031245) never changes.

Identity and time

Publication numberOT-2026-000031245 · never reused
Internal UUID01a0ae74-87ab-7372-9ff1-38e4dfb66344 · 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-2026-000031245
StatusPUBLIC

Content hashes

Canonical text28d06f4f757101597bbfb0592ff65e254060607db6b2892eae40256a389b5adc
Markdown7667a63ad0ad3bf7402718a0117e07d4c8200ed5a4392f0385ac861a735b5454
PDF
Publication page0223b0362e2b241695d5af6978616963664153dcfaf74927d72d19302cba361e
Manifestbfc3ca31225249480ba6a29f8d48556edf5d7c8e38296ef91cdc56c919fa3482

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
SignatureoZcwkHOpwBdKf8w9AlwhhY6K0U5pdSbfZFqlcWJ1cvrdtopVatWidKEkmV4pwyYspYrU2pJ2I6NdxSdh5V3hAg==
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

2026-09-17T11:35:49.116202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031245
observed 0223b0362e2b241695d5af6978616963...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:49.098993ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031245/manifest.json
observed bfc3ca31225249480ba6a29f8d48556e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:49.079894ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031245/publication.md
observed 7667a63ad0ad3bf7402718a0117e07d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:49.062244ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031245/publication.txt
observed 28d06f4f757101597bbfb0592ff65e25...
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.