OpenTechnical

OT-2026-000006403

Publication integrity record

Vacuum cup gripper, common isolation valve, three stage ejector, polyurethane cups, oval form

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-2026-000006403) never changes.

Identity and time

Publication numberOT-2026-000006403 · never reused
Internal UUID01a0a95a-09fa-714c-8e98-27668f0d69a6 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:34:05.438269Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006403
StatusPUBLIC

Content hashes

Canonical text4db41d4e930e65e9c017239ad11107f2849a30172e7694b7b18151ac8ee4c160
Markdown9122f87014cbe82c5ff108aeb87ed252a84f68a09ee20de05b6f9c970b521f09
PDF
Publication pagea1c621d6686bf42df123316e1617872682bc85babe1c40c5b51ae0923538fb23
Manifest1c39b10be22d9bc501e3a5b396fa9acddb75902f9ac874a1a916bae0fc1dcdd2

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
SignatureAVkosC8BTDUEscoeEiTIw9RhrKdyjrtazASS8p0Dv58LZ5K/9P+zXp9VzM7xhyMyKPj+TtvHcQqcFQwIUha5Bw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:21.477210ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006403
observed a1c621d6686bf42df123316e16178726...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:21.464041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006403/manifest.json
observed 1c39b10be22d9bc501e3a5b396fa9acd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:21.452034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006403/publication.md
observed 9122f87014cbe82c5ff108aeb87ed252...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:21.438857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006403/publication.txt
observed 4db41d4e930e65e9c017239ad11107f2...
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.