OpenTechnical

OT-2026-000082778

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented 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-2026-000082778) never changes.

Identity and time

Publication numberOT-2026-000082778 · never reused
Internal UUID01a0ae97-8cc9-7431-9fb9-2a54fabf1e69 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:22.827170Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000082778
StatusPUBLIC

Content hashes

Canonical textd2f75519d6820b07faec6cfcf3133961577b9dba15fc0d938cf26a7aeb515ecb
Markdown107cf4028bfc482eb4f2ce1899882eb1218a4a3eec4c4b0ede6c3a6bee588f47
PDF
Publication page574520a4c5e491c7fd9495587fa81adef4f206a34294b2e65d68d482ef512461
Manifestc3a6521ec3b1cbdda32d839e8875b99a6714ebda13321021249a145ff6978bf6

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
SignatureOaMu1NmQXSWZL9ss0qsDTFyGfHpxSBcZBQqS0EAJTfhGtNDY87oACfEIWPXs/gRrLCayRmo36hxkeZkInCMMBg==
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

2026-09-17T09:58:21.982643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082778
observed 574520a4c5e491c7fd9495587fa81ade...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:21.965605ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082778/manifest.json
observed c3a6521ec3b1cbdda32d839e8875b99a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:21.949017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082778/publication.md
observed 107cf4028bfc482eb4f2ce1899882eb1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:21.931091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082778/publication.txt
observed d2f75519d6820b07faec6cfcf3133961...
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.