OpenTechnical

OT-2026-000077169

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000077169) never changes.

Identity and time

Publication numberOT-2026-000077169 · never reused
Internal UUID01a0ae94-f507-7be2-85b7-7385ecbf3407 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077169
StatusPUBLIC

Content hashes

Canonical text85075899910b9bcffa5e3320fd6ee8ffcc28d7941f91d65a30cf2c328c301c34
Markdown4430d58df03ad9eda1b2374a616b216a4073f2fddbc1812ccdb6d56bd3c27d7f
PDF
Publication page2c0df6ea0c42f3cc0a4578b7a8bc611e3e7cf9b3f6054e4df64c2008521e4173
Manifest3f2fcbd4f5eaeca3bc2fa1eba183c55c58dde73a6007710ab9a6f07b13cf8dfc

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
SignatureQlS2gIY3RCIkPO26hzahXbzTl1wUjkT0+PMMov4wsNgnKxL7w/mOCSCrAnvdFfjJtte/X6Mw724gMP3NkdUuDQ==
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

2026-09-17T10:11:59.777097ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077169
observed 2c0df6ea0c42f3cc0a4578b7a8bc611e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:59.755771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077169/manifest.json
observed 3f2fcbd4f5eaeca3bc2fa1eba183c55c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:59.296399ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077169/publication.md
observed 4430d58df03ad9eda1b2374a616b216a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:59.267435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077169/publication.txt
observed 85075899910b9bcffa5e3320fd6ee8ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:38.444829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077169
observed 2c0df6ea0c42f3cc0a4578b7a8bc611e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:38.425938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077169/manifest.json
observed 3f2fcbd4f5eaeca3bc2fa1eba183c55c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:38.403773ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077169/publication.md
observed 4430d58df03ad9eda1b2374a616b216a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:38.383180ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077169/publication.txt
observed 85075899910b9bcffa5e3320fd6ee8ff...
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.