OpenTechnical

OT-2026-000090765

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, 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-2026-000090765) never changes.

Identity and time

Publication numberOT-2026-000090765 · never reused
Internal UUID01a0ae9c-7f31-72ca-8dfa-3aad40048170 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090765
StatusPUBLIC

Content hashes

Canonical text8c200f5cb6b8b9de08470ddaed259256ef7f04157bc42b070a06e876cdb50f2e
Markdownede50058d097666a977a317deec869908d8d7abaa2b6ba3d2dd20affd3799110
PDF
Publication page2051a70723bcf23c8e23e3e2c9a7f69b5fb748b732d5385011e286e0c0bdc951
Manifest8dd74e1685796c332582aba906f778ba89e3694e3bd48b1764b79be13de0c80e

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
SignaturejkPfZwk0PVAwJWa1HqpD5vyduyWumYgwqVnLwatZ09wbbtf9aNgMiCz8OhoD12aIcVX6k/TgBfZ9cxOlD204AA==
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

2026-09-17T09:44:57.780469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090765
observed 2051a70723bcf23c8e23e3e2c9a7f69b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:57.762250ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090765/manifest.json
observed 8dd74e1685796c332582aba906f778ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:57.743472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090765/publication.md
observed ede50058d097666a977a317deec86990...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:57.725170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090765/publication.txt
observed 8c200f5cb6b8b9de08470ddaed259256...
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.