OpenTechnical

OT-2026-000086439

Publication integrity record

Three cup vacuum gripper, three zone face, 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-2026-000086439) never changes.

Identity and time

Publication numberOT-2026-000086439 · never reused
Internal UUID01a0ae9a-2c97-7792-a413-1c2507717827 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:14.823225Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086439
StatusPUBLIC

Content hashes

Canonical texted8d8ef4aea13572b66befa9253c505d230208419fc5217e91ef95f6072f4913
Markdowna0b9c386968709a29eb63169afa7d20f4cf76508f79da279068c53a1cf0ac5ca
PDF
Publication pagedf9df9bc8c0970e005d97090570b77a9b9debcf9ebe7497862bb6977b1430dbc
Manifestb1a6a797cdf1897c23f4f5a1c1debd80e5b674c0de7c9dd4940f16b4e061829c

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
SignatureNrskyQ+9VLRO5R7RJI4KBkuqNee5Epl+GjBQESBrzXpSg30dlY4ntnuWBCwOEQGEAhw6eorthRnmUM3TxzbHAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:52:14.302094ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086439
observed df9df9bc8c0970e005d97090570b77a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:14.284033ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086439/manifest.json
observed b1a6a797cdf1897c23f4f5a1c1debd80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:14.262243ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086439/publication.md
observed a0b9c386968709a29eb63169afa7d20f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:14.243947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086439/publication.txt
observed ed8d8ef4aea13572b66befa9253c505d...
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.