OpenTechnical

OT-2026-000006476

Publication integrity record

Bellows cup vacuum gripper, four zone face, ejector fed, pressure verified, vented after set down

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-2026-000006476) never changes.

Identity and time

Publication numberOT-2026-000006476 · never reused
Internal UUID01a0a95c-9648-710f-82f8-7ab424c49f55 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:36:52.427214Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006476
StatusPUBLIC

Content hashes

Canonical text4e4d12bc9f4df6475d79d7a086e91231ea9322fd40117dc212e7fc504681e5fc
Markdown4e15e7448b54284d09a1d1ef26c3d0deddae6a69203f4fb23d10fd807df4a4fa
PDF
Publication pagea4a573b84baa7e6c19c19a12f6e7c8fbe1be2f46030eb57b9dd79430279e4ef7
Manifested6b0ed65deb4b3f7fc68e6e661c46b2f23d2175618aea3b50ff39a917e70b04

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
Signature8xYoHlljyZ1c2rcRcQmz5ZHqF4aA6EHCIqOeJfyBFkZZNsiLBtyiVC20e2Ytx3hG8+NRkdN1Uki7qYNxAGZACg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:13.200637ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006476
observed a4a573b84baa7e6c19c19a12f6e7c8fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:13.187101ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006476/manifest.json
observed ed6b0ed65deb4b3f7fc68e6e661c46b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:13.171327ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006476/publication.md
observed 4e15e7448b54284d09a1d1ef26c3d0de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:13.158392ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006476/publication.txt
observed 4e4d12bc9f4df6475d79d7a086e91231...
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.