OpenTechnical

OT-2026-000057569

Publication integrity record

Single cup vacuum gripper, pump fed, supply line pressure sensor, vented before 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-2026-000057569) never changes.

Identity and time

Publication numberOT-2026-000057569 · never reused
Internal UUID01a0ae88-2693-72a3-b339-40786fcdfa2f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:33.513637Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057569
StatusPUBLIC

Content hashes

Canonical text201d41ec1afca70a38eb97835b232f744ba1c7b7aba643a5a5792ef29ea35146
Markdownf97810b8a441162f75df62d1ec862018b818bb4145d13afd2d86da4533ede7d0
PDF
Publication paged3563077becacbf0d33814f18b6c32ecc31411e6eb502ccb09afecfb2f1e1da4
Manifest7184cd5099e3f87f52e8fdb1a900aa52418c5e94c8f5051cc7a6a1fd3ab9cc23

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
SignaturenygRtpHZcT7bAfNUU4uLjel1LEcf1SGoXhXnAvias/tRyEChrJo6K1RO9YezpuecMUA/Lmmi791mvDFddZ8OCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:48:06.781777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057569
observed d3563077becacbf0d33814f18b6c32ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:06.765376ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057569/manifest.json
observed 7184cd5099e3f87f52e8fdb1a900aa52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:06.748396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057569/publication.md
observed f97810b8a441162f75df62d1ec862018...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:06.731199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057569/publication.txt
observed 201d41ec1afca70a38eb97835b232f74...
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.