OpenTechnical

OT-2026-000087527

Publication integrity record

Three cup vacuum gripper, three zone face, single stage ejector, supply line pressure sensor, 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-2026-000087527) never changes.

Identity and time

Publication numberOT-2026-000087527 · never reused
Internal UUID01a0ae9a-cd51-729d-ad41-b394fba0b550 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087527
StatusPUBLIC

Content hashes

Canonical text254ea8d19f2752bdd357decec66b2861cb202a1d3c3223be57d25cda830e33f9
Markdownc880cf9ba85c303165796cf800c2992b0337fb3c293a2de2f9e2127ade18a373
PDF
Publication page8a0f40414a1684d7e32d90436eba0195b72d1e540ccee0b31dc39ea630ccef37
Manifest81bda02e0f290c70ac02c5fe6571e40bd8de38c9e718ed07135f84e99453d847

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
SignatureaCNhSJfhz+hVpy50+SZSXx/rLR/HR2J+TFNTEsUVKdEii86pqUJln3DYYNhDDZkdgNm7o9kNcrR2bL2UgWHnBg==
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

2026-09-17T09:50:51.878575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087527
observed 8a0f40414a1684d7e32d90436eba0195...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:51.861712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087527/manifest.json
observed 81bda02e0f290c70ac02c5fe6571e40b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:51.844488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087527/publication.md
observed c880cf9ba85c303165796cf800c2992b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:51.827891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087527/publication.txt
observed 254ea8d19f2752bdd357decec66b2861...
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.