OpenTechnical

OT-2026-000083491

Publication integrity record

Foam pad vacuum gripper, four zone face, single stage ejector, sustained blow-off before set-down, on a tool changer

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-2026-000083491) never changes.

Identity and time

Publication numberOT-2026-000083491 · never reused
Internal UUID01a0ae97-c965-75b8-b9fb-ac71e1010b0d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083491
StatusPUBLIC

Content hashes

Canonical text7fab4c756d7e35c8e53f5f77d83003e0a4a2813880015fad1d8b1e0a9e2e3a1a
Markdowne16b0c52d2910f753cbef8139ba7d439a28ddc997425a53968ab2bff1dea1940
PDF
Publication pagee4b0e3511fd89ebf96ace8ad266c5e5d10096712ff8215e0360fbd20b128d9b2
Manifest270826865faa3d0b00f98486dba72318d7b262de380f1c881820014ccfed065c

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
Signatureem1EwUgifsxxKb7pDa38kxFDe5GgoFXST/pWuTyf0MUfvHuw64/qpk3tjMoYJotF7+2AjcegUdP8TDtf6++wDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:57:54.915328ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083491
observed e4b0e3511fd89ebf96ace8ad266c5e5d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:54.900128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083491/manifest.json
observed 270826865faa3d0b00f98486dba72318...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:54.884687ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083491/publication.md
observed e16b0c52d2910f753cbef8139ba7d439...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:54.869853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083491/publication.txt
observed 7fab4c756d7e35c8e53f5f77d83003e0...
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.