OpenTechnical

OT-2026-000086543

Publication integrity record

Four 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-2026-000086543) never changes.

Identity and time

Publication numberOT-2026-000086543 · never reused
Internal UUID01a0ae9a-2c98-70fe-925d-3c326a92e719 · 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-2026-000086543
StatusPUBLIC

Content hashes

Canonical text24eb915532cd8ad5283778c9f7797a89d276b7f7944470b848e21ee55c3caf88
Markdownf2a273de27cfbc9a8d0d288e6bfe6e7f9d486f561c50f7fb0f5016ab3a0e7eca
PDF
Publication page3027ed25ab0b8d1d74aa6db388fd434d137f59018d78809135c06e5b5ca7a6c7
Manifest5aa5b31d844d41fdbf17a7f0e5abdd19447af289af7c8b7b01f8ee9994ebdfdf

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
Signature0mZKveV6VUkvk42QzBlcwFbYnZ06X7W0Jz8ATg20z3+LGz2/8qMoGMNLPqZakXSUXCSxSWV+qMUtuSRduLrACQ==
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

2026-09-17T09:52:22.246979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086543
observed 3027ed25ab0b8d1d74aa6db388fd434d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:22.229861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086543/manifest.json
observed 5aa5b31d844d41fdbf17a7f0e5abdd19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:22.212504ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086543/publication.md
observed f2a273de27cfbc9a8d0d288e6bfe6e7f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:22.195781ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086543/publication.txt
observed 24eb915532cd8ad5283778c9f7797a89...
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.