OpenTechnical

OT-2026-000023405

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, 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-2026-000023405) never changes.

Identity and time

Publication numberOT-2026-000023405 · never reused
Internal UUID01a0ae70-7268-7f8d-bf0f-513e5e5d32d4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:40.056870Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023405
StatusPUBLIC

Content hashes

Canonical textd1222debfc8c783d1cabaa06516cf3dd9b20955842d8ae6b225abe9906381e3f
Markdownb089e9e8f2d035b3f0e3a3e65683574464c39eccf2c51d28cbe9e45f467cdc22
PDF
Publication pagec3e83ff6b2e7cedff2aacf031c8aea8402b7b18f494d5cc703bab202a8857994
Manifestcce6c3b83519311dbfcb528a70d481d2e1d8044dfd494cc81b05d0a55df4ae95

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
Signaturea3AJxJVTEBg3/LoTkzjcyP9tEbVtBWEI8OTOXB/7WBBKxlDPEzCFVjR7HmA4qvKKsw70p6RJVfgIrszLzOYGDg==
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

2026-09-17T11:51:36.652896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023405
observed c3e83ff6b2e7cedff2aacf031c8aea84...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:36.636234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023405/manifest.json
observed cce6c3b83519311dbfcb528a70d481d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:36.615479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023405/publication.md
observed b089e9e8f2d035b3f0e3a3e656835744...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:36.598901ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023405/publication.txt
observed d1222debfc8c783d1cabaa06516cf3dd...
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.