OpenTechnical

OT-2026-000103984

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, pump fed, pulsed blow-off after 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-2026-000103984) never changes.

Identity and time

Publication numberOT-2026-000103984 · never reused
Internal UUID01a0aea5-15e8-728b-9035-7e0af06186e9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:09.781581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103984
StatusPUBLIC

Content hashes

Canonical text0b84ae14a16ec4d8db327177e3a9c829101b79ec801dab42640085c0ca900e55
Markdown2c9d827ce52fac8f22a8db69a5440642366b5934d3c267f840386910023afe48
PDF
Publication pagec233cc01b403367ddd8efebf567e91ff2b904d985b82fffecf63ba66ecb81a31
Manifestfa512a17e4134fa3926f0e0e603af51b1bb247e6110b02b9bc7c160508dbc35f

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
SignaturekuB/X6Nc8LWdd1SQxhjkd8pEumq0V6OF58NVCnXoe1kq274Uf9E8S9lQZoHB85fq9APEii/6zmLF52GbQtRRDg==
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

2026-09-17T09:21:59.347184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103984
observed c233cc01b403367ddd8efebf567e91ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:59.331504ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103984/manifest.json
observed fa512a17e4134fa3926f0e0e603af51b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:59.314709ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103984/publication.md
observed 2c9d827ce52fac8f22a8db69a5440642...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:59.297716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103984/publication.txt
observed 0b84ae14a16ec4d8db327177e3a9c829...
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.