OpenTechnical

OT-2026-000013584

Publication integrity record

Single bellows cup vacuum gripper, pump fed, pulsed 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-2026-000013584) never changes.

Identity and time

Publication numberOT-2026-000013584 · never reused
Internal UUID01a0ae6d-6fcb-729c-a94e-9341d57c0b92 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013584
StatusPUBLIC

Content hashes

Canonical text45c411f7eeb248db1838336cab8c64ee1d7b83f4157fbd0c45bab5b0311710ed
Markdown515961ba369a583d061f6fc3ad6f2fd0a73440aefe4bddebf65911ef8e689c78
PDF
Publication page7c4f2cc84886754c6d9c7b8f80b4c65be5e31bde23eae7a648d6120f33ebae93
Manifest5cf0d0cc02e49ee5153363290663114c67d2b777c1a0cccec910107a80c51b70

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
Signature494ayy95E9R11Mj1olrS8zmynzAwz4n4Crx/Jxopw4Su9GJubtyG4qdFi1tB9/mTAxIV0dXqN5QPZknGib1LDg==
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

2026-09-17T12:09:22.992702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013584
observed 7c4f2cc84886754c6d9c7b8f80b4c65b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:22.974254ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013584/manifest.json
observed 5cf0d0cc02e49ee5153363290663114c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:22.953172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013584/publication.md
observed 515961ba369a583d061f6fc3ad6f2fd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:22.929861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013584/publication.txt
observed 45c411f7eeb248db1838336cab8c64ee...
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.