OpenTechnical

OT-2026-000048283

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, plant vacuum fed, 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-2026-000048283) never changes.

Identity and time

Publication numberOT-2026-000048283 · never reused
Internal UUID01a0ae80-4de3-7e26-9421-49a22d642e33 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048283
StatusPUBLIC

Content hashes

Canonical text6dcc83ceba7c6f574baa968494d063ccb647dc08628c34a6cb23f3203724153e
Markdownb8d93d4aba81635ea09ba9226a2d8d7c480bbe0857c484c7daa8c8a156dd6c5c
PDF
Publication pageed32cd18b24d2833d0802f24dea7a111b19b106bdf3afc14a4c48a5d72d81899
Manifest2a7c54580badfc78653f03047f51d43cbb58e8d1e7872dc0e64bd80efd3ea2f9

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
Signature73Sc44K7aUAGIs64iG8wc6JkXKq+PxWvNg2A5oIL9L0UHkS8s5Mue7Gd9Pqb6SR0lf9UlEENfcvzDin87hF8Cw==
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

2026-09-17T11:04:51.930434ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048283
observed ed32cd18b24d2833d0802f24dea7a111...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:51.911670ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048283/manifest.json
observed 2a7c54580badfc78653f03047f51d43c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:51.894343ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048283/publication.md
observed b8d93d4aba81635ea09ba9226a2d8d7c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:51.874926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048283/publication.txt
observed 6dcc83ceba7c6f574baa968494d063cc...
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.