OpenTechnical

OT-2026-000022677

Publication integrity record

Single cup vacuum gripper, common isolation valve, pump fed, sustained blow-off before 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-2026-000022677) never changes.

Identity and time

Publication numberOT-2026-000022677 · never reused
Internal UUID01a0ae70-46e9-7bd0-9d1f-3a7c72edbe22 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022677
StatusPUBLIC

Content hashes

Canonical text33d87780e5e5d41fa8a9138e5e0777f46f7aaa2ddf76834c480de6d615a15433
Markdown5351214f813cee288740438feca0f2f723ee6386452f0136712077a4471a7835
PDF
Publication page754554e06aacd4fdbc9436d8f67dcec0426da8f9a90f6a62193dc7dae996dce6
Manifest933bb4e4f056ee4f78937fd4ee07cb552e1cf20122533a91cc841029e7dd1b49

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
SignaturetUWukipNVPa1w+j490RpaH2wrkHW3IiefGjtUzaOTGzAf3H4UHrqAyaNiZI3djYshrTNIu2vkTx3RhrJnEP+AQ==
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

2026-09-17T11:52:03.876700ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022677
observed 754554e06aacd4fdbc9436d8f67dcec0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:03.859027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022677/manifest.json
observed 933bb4e4f056ee4f78937fd4ee07cb55...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:03.839814ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022677/publication.md
observed 5351214f813cee288740438feca0f2f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:03.821495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022677/publication.txt
observed 33d87780e5e5d41fa8a9138e5e0777f4...
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.