OpenTechnical

OT-2026-000086442

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-2026-000086442) never changes.

Identity and time

Publication numberOT-2026-000086442 · never reused
Internal UUID01a0ae9a-2c97-7cd7-b08a-6b1ae9ab95cd · 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-2026-000086442
StatusPUBLIC

Content hashes

Canonical textf5a6fe01bd2b4ef7297479d1a157ea895f0ea5bb36e17f0865ddb59006f710a0
Markdown12f0fc9b69e8ace77632f8ae5327ccc6d219e25c567d0f52177f8af0b76789af
PDF
Publication page22cac05542a5929725f76315993b2dbc777cdcbf6501f8614251d4b00b10dc34
Manifest7510b59b627fa7d43c2baf4c079a1becb3aff76746007b3940b3d6e01a85b055

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
SignaturelZ2gE8bCRr4z/dCFpmYNF/dXGn4ko/DcINc4MGrQbMbbqVOsg/yVlddsZlIotvOh55QULS0kX2SpsP4xbkdBAg==
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

2026-09-17T09:51:54.965180ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086442
observed 22cac05542a5929725f76315993b2dbc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:54.948232ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086442/manifest.json
observed 7510b59b627fa7d43c2baf4c079a1bec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:54.930703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086442/publication.md
observed 12f0fc9b69e8ace77632f8ae5327ccc6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:54.913172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086442/publication.txt
observed f5a6fe01bd2b4ef7297479d1a157ea89...
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.