OpenTechnical

OT-2026-000086529

Publication integrity record

Four bellows cup vacuum gripper, four 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-2026-000086529) never changes.

Identity and time

Publication numberOT-2026-000086529 · never reused
Internal UUID01a0ae9a-2c98-7384-ad29-4cd42423c501 · 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-2026-000086529
StatusPUBLIC

Content hashes

Canonical text6bbaa1ffc8f0a350068d536146d0975d43c76eaa6d031bca456f0fd3bc95c30a
Markdown7111624f8965218abd052eb551a69c0e454016b19f409cdba27441c2eb7437ee
PDF
Publication pagedcf5f0cbc8a585df894db3c992366cc0ee19c1b117503cd3a07e3d3eba53edf3
Manifest616e3cddf900e3c16497f90385e9e3f8abaaa33db7902322d0b52ac21eb253a7

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
SignatureCfMExmB5evc66rJoFBVWTnDi+2Ssch2+PtVgzhRq8/iYJrC4+YNTUTKE931B7jMWJs2eBlWaMvojSrBw4hBYAg==
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

2026-09-17T09:52:21.144213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086529
observed dcf5f0cbc8a585df894db3c992366cc0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:21.126285ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086529/manifest.json
observed 616e3cddf900e3c16497f90385e9e3f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:21.109404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086529/publication.md
observed 7111624f8965218abd052eb551a69c0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:21.092231ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086529/publication.txt
observed 6bbaa1ffc8f0a350068d536146d0975d...
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.