OpenTechnical

OT-2026-000015428

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, pulsed 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-2026-000015428) never changes.

Identity and time

Publication numberOT-2026-000015428 · never reused
Internal UUID01a0ae6d-ef49-795f-b0ed-583737d5f65b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015428
StatusPUBLIC

Content hashes

Canonical text9fd3c8c39b5a80fe3699af359f9307e179042e507ce172a84da9f1791cd33c60
Markdown703a7c1455edf223c7d4076c36a884923dd5432b5525cc259fb2e55318801bf5
PDF
Publication page75bace96a3a64c0f7a4b270abee6fc15bdf50bba899d577b846a34792391206e
Manifestc7a6fdb4732c67b2e33772d40bfe4fed522f1a6c0ac5f5c51fd80e1766e40ba1

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
SignaturevavpojS7ASq7ERC3AKQXsiAFUOPLqnvwZpehOUpHUhwaiMtYIEHWctkZIiFD2Jj9PAIWCy6MMgVbG2ffNV1GBA==
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

2026-09-17T12:06:09.869511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015428
observed 75bace96a3a64c0f7a4b270abee6fc15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:09.847715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015428/manifest.json
observed c7a6fdb4732c67b2e33772d40bfe4fed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:09.829479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015428/publication.md
observed 703a7c1455edf223c7d4076c36a88492...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:09.809730ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015428/publication.txt
observed 9fd3c8c39b5a80fe3699af359f9307e1...
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.