OpenTechnical

OT-2026-000061219

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, 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-2026-000061219) never changes.

Identity and time

Publication numberOT-2026-000061219 · never reused
Internal UUID01a0ae8b-1381-7510-9da4-a94c2c1e6766 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:45.252443Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061219
StatusPUBLIC

Content hashes

Canonical texte0f107ffd81e4e8215b2c2645389428bf739cb12a891d235bb28e08d199fe671
Markdown4c03098437df87e22350043aaa83194ea25b197a04afd659730b7dc3ab9740b4
PDF
Publication pageff1ff21541717bea919b12857189f74eb84bf53773b344a2ec72aa6ef3de1a75
Manifest28ffe3ccf5294b41639a2f7a2ec7ef8a9bbbcfb77cb79527d4346b9b14456588

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
SignatureIshk/KAdXljmBCx1t1yeHV4ru5UtQvnJSUIlWT7UEM8GvfeTxMfv9kxKPhdtgUC3goqXNL+pTAx3HNeOYyOIDQ==
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

2026-09-17T10:42:37.406482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061219
observed ff1ff21541717bea919b12857189f74e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:37.390150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061219/manifest.json
observed 28ffe3ccf5294b41639a2f7a2ec7ef8a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:37.371867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061219/publication.md
observed 4c03098437df87e22350043aaa83194e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:37.354912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061219/publication.txt
observed e0f107ffd81e4e8215b2c2645389428b...
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.