OpenTechnical

OT-2026-000062201

Publication integrity record

Single cup vacuum gripper, pump 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-2026-000062201) never changes.

Identity and time

Publication numberOT-2026-000062201 · never reused
Internal UUID01a0ae8c-0abd-7828-8634-46971e5fa438 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:48.542263Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062201
StatusPUBLIC

Content hashes

Canonical text85c6fb70d287f4ec5d1672e8d8aba2a40b07f32b89133eb66b6b992d38890269
Markdownd43dd802f274f0bfca059b7ceb06fe0f1366def13035f8b40f43f0ffd921107b
PDF
Publication page34d691eabe2b3903d333846cc455f4c73e3a1ea8ba124c61e57afe24cfb7b024
Manifest7e5d29395cb40051b9ce7f3988f110176ec337dc5c03a7b3e6b3e52ffc29b45c

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
SignatureMqtMCYSovtBY4DtTL5CC9JBc8PkjSI3uJE6H+7C5XCuOqQz6hairzyHKOUlQ1UcSb+bO0riMAcKOaKwYbpN3BA==
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

2026-09-17T10:39:28.008054ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062201
observed 34d691eabe2b3903d333846cc455f4c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:27.990642ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062201/manifest.json
observed 7e5d29395cb40051b9ce7f3988f11017...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:27.971230ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062201/publication.md
observed d43dd802f274f0bfca059b7ceb06fe0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:27.952062ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062201/publication.txt
observed 85c6fb70d287f4ec5d1672e8d8aba2a4...
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.