OpenTechnical

OT-2026-000102019

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, single 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-2026-000102019) never changes.

Identity and time

Publication numberOT-2026-000102019 · never reused
Internal UUID01a0aea4-50f1-75ec-9257-96c97702d7e5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:19.361569Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000102019
StatusPUBLIC

Content hashes

Canonical text18ef4cd702bb8a1257ac7fa64b1b5f4fd5205470e7264e54f75750a726c223e7
Markdown69ba800b30987b81d191995ad57d9eb25f360f2613ae48ba137d93caf44acf93
PDF
Publication page4e64be15d05b216f08bf05ef1170395e5853666f35b8d38d45d8f9c82d57bb03
Manifest168ffead2f61532190639a83629f2597be5059fe20faa899351fd6e05a39276b

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
SignatureHCad35ponIXWGYNGoHpFu1aIFr5gXHpznwF7AZVTNJI2JzwGxwpY7vziSbWMr779ATtYHX7d20MAlU6dlZZeBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:25:09.094908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102019
observed 4e64be15d05b216f08bf05ef1170395e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:09.075758ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102019/manifest.json
observed 168ffead2f61532190639a83629f2597...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:09.054701ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102019/publication.md
observed 69ba800b30987b81d191995ad57d9eb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:25:09.011892ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102019/publication.txt
observed 18ef4cd702bb8a1257ac7fa64b1b5f4f...
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.