OpenTechnical

OT-2026-000007481

Publication integrity record

Bellows cup vacuum gripper, three stage ejector, pressure verified at each zone, plastic cups

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-2026-000007481) never changes.

Identity and time

Publication numberOT-2026-000007481 · never reused
Internal UUID01a0a980-6a2f-7acc-8c7a-3616f2dc0e5f · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:16:00.435630Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007481
StatusPUBLIC

Content hashes

Canonical text9ad0a3d9f525e6c58262c683d75cffbddb527592442fd3434c105a3dc44f6973
Markdownb5f1fe8170bf29fe1f6d5f292fc3ded29ce263d94d539c381d4f51020798e3dd
PDF
Publication page99837ffe82426bad3253d4888a308fa73dff4ae79661471cae68872a24439695
Manifeste2ca282cc18c50260907aea7949713f1e473e1a64b7e32784dd98bca74038311

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
SignaturepFU29L59pEr5KQcbRvhAkLjG2cTKvG6XOjudHafakpHGpQ21b2ght2ivppRmxjFL4NkqW87V2YIbwxnzIE41Cw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T09:20:02.992238ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007481
observed 99837ffe82426bad3253d4888a308fa7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:02.979920ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007481/manifest.json
observed e2ca282cc18c50260907aea7949713f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:02.963507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007481/publication.md
observed b5f1fe8170bf29fe1f6d5f292fc3ded2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:02.948100ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007481/publication.txt
observed 9ad0a3d9f525e6c58262c683d75cffbd...
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.