OpenTechnical

OT-2026-000071566

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, vented 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-2026-000071566) never changes.

Identity and time

Publication numberOT-2026-000071566 · never reused
Internal UUID01a0ae91-e0ee-7873-a954-7a963eed5269 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071566
StatusPUBLIC

Content hashes

Canonical textc7419518deec15ccada597852c8e3ee55401399607b671a567d853e6b8258f6e
Markdown33f8e19d5eeeadebc7b697d711bdb2d0a11245d07717d668bc2e273dfefa4d2f
PDF
Publication pagec581d5703042e2b0492ca4fda89a83d9d7a12b60c5e1ad4173ba2231fedd761f
Manifest2ac75ee30550646fe49c06cfda04aaa6f65affcd712b749ba7c2cbc163b19885

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
Signature2n6NBu2tTaFq08+tA4pIV5vk+E60aX3/RwvHEQwU1K0U8Jalvcu6Eitn0R19yvbTP4FmzLGmOvw1j2wCtmKGCw==
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

2026-09-17T10:25:13.302515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071566
observed c581d5703042e2b0492ca4fda89a83d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:13.286268ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071566/manifest.json
observed 2ac75ee30550646fe49c06cfda04aaa6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:13.267806ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071566/publication.md
observed 33f8e19d5eeeadebc7b697d711bdb2d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:13.249986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071566/publication.txt
observed c7419518deec15ccada597852c8e3ee5...
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.