OpenTechnical

OT-2026-000033644

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, three stage ejector, manifold pressure sensor, sustained blow-off before set-down

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-2026-000033644) never changes.

Identity and time

Publication numberOT-2026-000033644 · never reused
Internal UUID01a0ae75-a38f-7ed2-95bd-9e6ccb3cf367 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:22:20.325649Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033644
StatusPUBLIC

Content hashes

Canonical text4a5d0f2c4e2d7ff4b2b3ac0e6d909e6e6da99d0941669f6f855fcd6a714b3c68
Markdown056736bfc56bfa84dd8f4eea2aa5ce5e957f4468b9168f5488ba281928a896db
PDF
Publication pagea9ae240bafef02d9be38495ce66ee93db95add1c1fc4b466893c9e9d7bfcb87e
Manifestae80c9b9095effe203852942a1ed552a14dd8071852138198f19925132bda50d

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
SignatureD9XOFutswHroF+UDM8INFu0jyyMrOY7e4XgYIm/XMmZZ0wAtNeW+NZTDrz06G+BVI1eV83fCkWz2HOJ3j98BAg==
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

2026-09-17T08:44:18.793214ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033644
observed a9ae240bafef02d9be38495ce66ee93d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:44:18.255665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033644/manifest.json
observed ae80c9b9095effe203852942a1ed552a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:44:17.741809ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033644/publication.md
observed 056736bfc56bfa84dd8f4eea2aa5ce5e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:44:17.282707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033644/publication.txt
observed 4a5d0f2c4e2d7ff4b2b3ac0e6d909e6e...
fetched by grabo-systems from 34.44.131.203, 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.