OpenTechnical

OT-2026-000013398

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, pump fed, 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-2026-000013398) never changes.

Identity and time

Publication numberOT-2026-000013398 · never reused
Internal UUID01a0ae6d-6fca-7725-b7f1-e802c5e39474 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013398
StatusPUBLIC

Content hashes

Canonical textb1ab29a9dda20080cd6c4b378683c1b75db13303dd3712fdca7ae723a14b94e9
Markdownb76847213ac49b444454d2c3c97f29d66f9bf7b832c7566b73900041d363bb08
PDF
Publication page49fcadf9af2c9b4146dbd10cf9599397dd8002cb82f0bdf0fb56a693dc9db863
Manifest47fe0444fc8bc2c7e059a1640c6277a5c9e4cc8cf83ae6a8bb18a1035c93d2c2

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
SignatureX4zByUZwJ0CGpN2BFsOkKIFfhvyODpw5Mnu+tv3WpA2pW9cvMKymINUter2Ri9nics8DimbTCzQsOYO76ov1BA==
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

2026-09-17T12:09:52.342518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013398
observed 49fcadf9af2c9b4146dbd10cf9599397...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:52.323568ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013398/manifest.json
observed 47fe0444fc8bc2c7e059a1640c6277a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:52.304543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013398/publication.md
observed b76847213ac49b444454d2c3c97f29d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:52.285814ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013398/publication.txt
observed b1ab29a9dda20080cd6c4b378683c1b7...
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.