OpenTechnical

OT-2026-000049655

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, pressure sensor per zone, 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-2026-000049655) never changes.

Identity and time

Publication numberOT-2026-000049655 · never reused
Internal UUID01a0ae81-8fee-76ac-865c-7f6003bf00e6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049655
StatusPUBLIC

Content hashes

Canonical textd4e8904227d91cfb2b0409ca4a53374f6e42c28f69b61ad64dfb73807a282363
Markdown52f6e679bf26c723ddd11b9d6647c49bb4a8775d1b4f31ed9f157dcaa45407a7
PDF
Publication page018b8d3e4189d663512efc5398a85edbdccf6ad7d5bea67bcc343cc270be9b8f
Manifest8820b578b86b430c423efebd3656fe34cefecfee6a3d127c2486b79a62567617

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
SignaturePxRntDFQft+NYNeePbIarrXLrfB4+Xag9n9e+7dkkCuNiIpB7ziR2AhCtXSdaG3usAAqBZzyf+7dNwnkWw0BAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:02:39.318430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049655
observed 018b8d3e4189d663512efc5398a85edb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:39.299975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049655/manifest.json
observed 8820b578b86b430c423efebd3656fe34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:39.281608ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049655/publication.md
observed 52f6e679bf26c723ddd11b9d6647c49b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:39.263288ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049655/publication.txt
observed d4e8904227d91cfb2b0409ca4a53374f...
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.