OpenTechnical

OT-2026-000072903

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, single 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-2026-000072903) never changes.

Identity and time

Publication numberOT-2026-000072903 · never reused
Internal UUID01a0ae92-c814-7072-adcd-c1e6217bdfc1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072903
StatusPUBLIC

Content hashes

Canonical text6f1a3d555adcdfcd9f9a27a5d1beda4d9e458826904193401bde5d85c55474e5
Markdownb47da93b01a1f8fdafb49f603e876d14f6b69cecae1cb9a96cb55f99aa2f50b8
PDF
Publication pageb0baafbc574b7ad6c0dc15e3ab020c90b0ce64196a2e051fdee241c81b199c97
Manifest78605e85fcb6f6d37331afd199e2e464e0bb1c545fab9bf867a4896f843a1b4a

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
Signature4IyTJvzB4Cg/RdJvtl64TXGVdJ3kxytaNkGmarXwR16Kyql1OOC9UrSAx9eLWBYt0EkOtnXyl+h481M7ZBcXCg==
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

2026-09-17T10:21:48.702218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072903
observed b0baafbc574b7ad6c0dc15e3ab020c90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:48.685613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072903/manifest.json
observed 78605e85fcb6f6d37331afd199e2e464...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:48.667440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072903/publication.md
observed b47da93b01a1f8fdafb49f603e876d14...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:48.650150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072903/publication.txt
observed 6f1a3d555adcdfcd9f9a27a5d1beda4d...
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.