OpenTechnical

OT-2026-000099854

Publication integrity record

Four cup vacuum gripper, four zone face, single stage ejector, pressure sensor per zone, 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-2026-000099854) never changes.

Identity and time

Publication numberOT-2026-000099854 · never reused
Internal UUID01a0aea3-1473-7129-bcca-55d2a32cfcc4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:58.336218Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000099854
StatusPUBLIC

Content hashes

Canonical text4b4d158c795572c33213755ca718dbd7abb887c7ac9557e05196780e29191ece
Markdownd7cbfee3e1c7415a65a3ace2a3acb568102507ccc3fc6c5936e64b2bde2f5323
PDF
Publication pagee0da435d209a4900f08d986fae9a6f5f0b95e76c432df0fbf80d5084056709af
Manifest88cd60d7d2e30a008923c7e8ffdaad82a6be01c771e3d68484611273e029df7d

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
Signature5S6k80e7P9o+thLDRVU6MOKf3V9QqSzzDUah3qvqRH5gUcmmjAUTP/+2YBiZya8GnK10uMYo3Kc2gMMuNnxgAQ==
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

2026-10-19T04:41:27.411237ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099854
observed e0da435d209a4900f08d986fae9a6f5f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T04:41:27.349793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099854/manifest.json
observed 88cd60d7d2e30a008923c7e8ffdaad82...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T04:41:27.286745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099854/publication.md
observed d7cbfee3e1c7415a65a3ace2a3acb568...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T04:41:27.213723ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099854/publication.txt
observed 4b4d158c795572c33213755ca718dbd7...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T09:30:21.667926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099854
observed e0da435d209a4900f08d986fae9a6f5f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:21.648256ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099854/manifest.json
observed 88cd60d7d2e30a008923c7e8ffdaad82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:21.628137ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099854/publication.md
observed d7cbfee3e1c7415a65a3ace2a3acb568...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:21.608741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099854/publication.txt
observed 4b4d158c795572c33213755ca718dbd7...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent