OpenTechnical

OT-2026-000061246

Publication integrity record

Foam pad vacuum gripper, two stage ejector, vented 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-2026-000061246) never changes.

Identity and time

Publication numberOT-2026-000061246 · never reused
Internal UUID01a0ae8b-1382-7394-b54a-8ac53e469b01 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:45.252443Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061246
StatusPUBLIC

Content hashes

Canonical textc94b3334070b3c2f60e11f237fe9f91690a049e8db36deb1125b112297d266dd
Markdown54539ee24dc317cf0de1a66e4c0af2b5758d5e37e67bdf7e898244e0a40825a9
PDF
Publication pagee64c376c6e38dec8df1f116ff58271cbec73f604e7fa57aee6db8111c76bf7be
Manifestd7ff2e7ffea3fb88830bd4cc9f9f632bba7539b3e5553dfd83da3f14556799ee

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
SignatureEB/gH0URf1NiUBL64efASEmvSDy1RE6zRdhrj3cwNUWRhng6PT6Do6apEELvVdah0ZNaA6qO1LTx2c4n150xCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:42:39.589045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061246
observed e64c376c6e38dec8df1f116ff58271cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:39.569892ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061246/manifest.json
observed d7ff2e7ffea3fb88830bd4cc9f9f632b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:39.552886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061246/publication.md
observed 54539ee24dc317cf0de1a66e4c0af2b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:39.535273ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061246/publication.txt
observed c94b3334070b3c2f60e11f237fe9f916...
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.