OpenTechnical

OT-2026-000021715

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pulsed blow-off before set-down

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-2026-000021715) never changes.

Identity and time

Publication numberOT-2026-000021715 · never reused
Internal UUID01a0ae6f-bb59-74d0-a7a8-bd42f49ae291 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021715
StatusPUBLIC

Content hashes

Canonical textfafb44566f582fc4f1c42e6cb4683d5bc9ff4d1386eeb4ef976aae4b6f868a22
Markdown76c0c937abfae5172d37cead1e03fee26475209266d166d867199f226efc3e88
PDF
Publication pagefcabe7eee897fb7d11fe5f6cc595fb51c84e34d47b6bdff0e2c542c8e001696c
Manifest56e0dbfbd0ef76c1151d9ae971bbd9786cf074e62113fbdd52eb894cdf1f1673

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
SignaturevJdtlel3VKDW6yRTBN0FdNk/a0wN7l9O2rkKaL8QeYZCUJndokvWuVjY7g+6DOz9v2UVRQCMypVqmOORT4V3BQ==
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

2026-09-17T11:54:15.299894ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021715
observed fcabe7eee897fb7d11fe5f6cc595fb51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:15.282103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021715/manifest.json
observed 56e0dbfbd0ef76c1151d9ae971bbd978...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:15.264414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021715/publication.md
observed 76c0c937abfae5172d37cead1e03fee2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:15.243700ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021715/publication.txt
observed fafb44566f582fc4f1c42e6cb4683d5b...
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.