OpenTechnical

OT-2026-000060513

Publication integrity record

Single cup vacuum gripper, common isolation valve, pump fed, 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-2026-000060513) never changes.

Identity and time

Publication numberOT-2026-000060513 · never reused
Internal UUID01a0ae8a-b7cc-7d63-bdaa-7da7d232eab7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:21.818756Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000060513
StatusPUBLIC

Content hashes

Canonical text8653bc173a9006be2b63c93e883649095e0fe00c288c00378761a67bae5aae5b
Markdown1b4a302c252d3af4714a36b24fcb7c7c4e8579ffc5ef4e01bf91372e8b06cc59
PDF
Publication pagec6123d37ad11ad3cef43e161506000ac7cc1b34dafd65f50b6ee2560ade246c5
Manifest719c953bb031ca3701da1aa95e75201ec60b8352248609c02d6be03e938d706a

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
SignaturepC8e5yPszJ8o7lnBHctGPKDrjDjMciZZm9jWujBetwwVJJmLnY369L1vcSz5HlB1ruWcnjGQZfrg+92ksGSWCQ==
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

2026-09-17T10:43:00.854965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060513
observed c6123d37ad11ad3cef43e161506000ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:43:00.837611ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060513/manifest.json
observed 719c953bb031ca3701da1aa95e75201e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:43:00.820228ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060513/publication.md
observed 1b4a302c252d3af4714a36b24fcb7c7c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:43:00.801874ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060513/publication.txt
observed 8653bc173a9006be2b63c93e88364909...
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.