OpenTechnical

OT-2026-000020250

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, two stage ejector, supply line pressure sensor, 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-2026-000020250) never changes.

Identity and time

Publication numberOT-2026-000020250 · never reused
Internal UUID01a0ae6f-437a-7cc4-874f-47a3002b3502 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020250
StatusPUBLIC

Content hashes

Canonical text547cb77d1547f11e4dd8d135aefc6f8399a161e96f5805fb1def263864d5852d
Markdowna983e200aad15e5528ee0114cf04961c6abcd1816c1b89d08173f0b895c8bbed
PDF
Publication page7d27d4dcfd6daabca0e432adec623a85ea0a4c1d3b89de1dab3b487d632d5f86
Manifest5bb737706a3c62e74894af39e13478670aba80960cd923526a11e6dec35c8e4c

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
Signature5LHINB43IFwkho2blTxkYCZtEVZ/6cGo8Sr/ep3B7bq+rYHXMqJ9msueEQs9wYDXbMDtIUxduBKjonLO0htUAQ==
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

2026-09-17T11:56:35.784393ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020250
observed 7d27d4dcfd6daabca0e432adec623a85...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:35.764085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020250/manifest.json
observed 5bb737706a3c62e74894af39e1347867...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:35.744312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020250/publication.md
observed a983e200aad15e5528ee0114cf04961c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:35.725955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020250/publication.txt
observed 547cb77d1547f11e4dd8d135aefc6f83...
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.