OpenTechnical

OT-2026-000017049

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, 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-2026-000017049) never changes.

Identity and time

Publication numberOT-2026-000017049 · never reused
Internal UUID01a0ae6e-591b-7967-8edb-561bb8c38137 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:22.507214Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017049
StatusPUBLIC

Content hashes

Canonical text21f7f88c03cf20ccd34c772eb0e1b48b9a165e4eb0e6b2dc154b3a9a993b9ced
Markdown83eb55941c1b3dd4f55e3eca4eb6d323ee345782e989e2dcc12bb7f490dd2f22
PDF
Publication pagec6b00a9f65af6e5835ec08d4348774933a9313c49d95a4403d2aa90db5f7fd92
Manifestcb22c4a9b80a5df42abf679b437963348727e555bf5708f854a268026b37634d

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
SignatureIIwHnRbj73JeNWRX7tbchyxnhfz4gEXJ93H5xLeX6NlbDzRwCe8KfCqlRFCu/NKjEJoX5ca+qU/ND1Zt62rHCw==
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

2026-09-17T12:03:27.919821ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017049
observed c6b00a9f65af6e5835ec08d434877493...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:03:27.901905ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017049/manifest.json
observed cb22c4a9b80a5df42abf679b43796334...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:03:27.883874ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017049/publication.md
observed 83eb55941c1b3dd4f55e3eca4eb6d323...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:03:27.866048ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017049/publication.txt
observed 21f7f88c03cf20ccd34c772eb0e1b48b...
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.