OpenTechnical

OT-2026-000047711

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, pulsed 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-2026-000047711) never changes.

Identity and time

Publication numberOT-2026-000047711 · never reused
Internal UUID01a0ae7f-c41f-7f28-9b8e-dccb972b4212 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047711
StatusPUBLIC

Content hashes

Canonical text28f289a3ce9b869c6751959e2b54de8d010368d9bcc5dfa2851da144e276d6d8
Markdown9796b706f971e3f3cab5f665ae1710a57b14160430c4f5525e984a10fcf426a8
PDF
Publication pagec7efb5b8696fbff88587f55dacdace087a42ff24fe553c68ec861f83a9f6880b
Manifest8b374d8fd00f134e97d105cdb3bc1aaeed14880d329075b0e6d4cce1466c804b

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
Signaturek8c4HveE6FzuExzOn9AbLGurIIrEZoExzB3ropMgTp9wtd3cVAbTkryReiIq+CsamWVcCYHztjCMzXQGeAROAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:05:34.468958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047711
observed c7efb5b8696fbff88587f55dacdace08...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:34.448003ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047711/manifest.json
observed 8b374d8fd00f134e97d105cdb3bc1aae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:34.430195ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047711/publication.md
observed 9796b706f971e3f3cab5f665ae1710a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:34.411956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047711/publication.txt
observed 28f289a3ce9b869c6751959e2b54de8d...
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.