OpenTechnical

OT-2026-000031909

Publication integrity record

Single cup vacuum gripper, two stage ejector, pulsed blow-off after 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-2026-000031909) never changes.

Identity and time

Publication numberOT-2026-000031909 · never reused
Internal UUID01a0ae74-bad2-759d-b279-e18636e146a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031909
StatusPUBLIC

Content hashes

Canonical text8f3c947729dfb288ccc7ade1a958102644f59f14b262ea5d93942af1a73f5e22
Markdown0caae77c16ade49b0eabbe9dbcb94566fc572d554d61912db1e32559fe89671a
PDF
Publication page5c450fbe3d71e876c9c37012aab7682217345a1e6a235eda7344f8fcca39ec30
Manifest2584c21362b950606e15887150ffa542047b1e24de77c44d84ec83e138061374

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
Signaturepz6RvEDSdM+tAuucubqiPtCGd9w8xDy/UetDeSCVE0BDFHsvo0qtMFW+vEOhW9yK2vV97x2qfQBAISdDq7iOBA==
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

2026-09-17T11:35:10.882199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031909
observed 5c450fbe3d71e876c9c37012aab76822...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:10.861081ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031909/manifest.json
observed 2584c21362b950606e15887150ffa542...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:10.838461ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031909/publication.md
observed 0caae77c16ade49b0eabbe9dbcb94566...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:10.818591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031909/publication.txt
observed 8f3c947729dfb288ccc7ade1a9581026...
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.