OpenTechnical

OT-2026-000083603

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum 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-2026-000083603) never changes.

Identity and time

Publication numberOT-2026-000083603 · never reused
Internal UUID01a0ae98-0415-7106-a7df-5ee6df784c96 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:53.320528Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083603
StatusPUBLIC

Content hashes

Canonical text57d02e62be623444075f888f5b74185388f8f4a5424099fff08c0f200ad4a4e4
Markdowndfea3656f3f227d846d6c6e9f2034ef195e706f485ce85290196b3e40b0e5397
PDF
Publication pagee23c9a17acff1e78b3deaaf96a7850270b94dd0baf276d803d2493f639602367
Manifestb71225e7f17a88965acb51d2693e4a5283200f43cf38a87f4bfec3dd3484fe86

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
SignatureRUTBIIaFUCA1YsGWXQxNFS/2bfMCVs2oaJO1KsQ3cc+aabv3h+NbvuGgOssGZyrYGQGiu2hE5p5cOC+1k1BNAw==
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

2026-09-17T09:57:05.862987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083603
observed e23c9a17acff1e78b3deaaf96a785027...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:05.846942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083603/manifest.json
observed b71225e7f17a88965acb51d2693e4a52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:05.830913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083603/publication.md
observed dfea3656f3f227d846d6c6e9f2034ef1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:05.813366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083603/publication.txt
observed 57d02e62be623444075f888f5b741853...
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.