OpenTechnical

OT-2026-000019015

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six 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-2026-000019015) never changes.

Identity and time

Publication numberOT-2026-000019015 · never reused
Internal UUID01a0ae6e-d523-718b-ad4b-69b4b57ef2b5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019015
StatusPUBLIC

Content hashes

Canonical textc80373c9f6283fbefe40187169d29c4c57591cffca102a23ae3635487dad4313
Markdown097842d23719e21ff733ec25bf27ca7101d4b04d4c6f7391b9af2ac221f3258d
PDF
Publication page99e5b93e67c3280077fbdb4e73b0789f70b857651bc1bee4acd31656b952c922
Manifestf89d8f224524a3cc1ec0fb82626d6b1f4452026b1e35df3dee94756cb8027fbc

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
SignaturePLADYRS9C//YBKeeX0+CcXL+FRZtYwSLbgN7+uq2VzN2BUk05FD3asaFk8cSd/d9NZPTClhyJysKeo1sg2c5BQ==
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

2026-09-17T11:59:42.253085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019015
observed 99e5b93e67c3280077fbdb4e73b0789f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:42.233832ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019015/manifest.json
observed f89d8f224524a3cc1ec0fb82626d6b1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:42.216109ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019015/publication.md
observed 097842d23719e21ff733ec25bf27ca71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:42.196455ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019015/publication.txt
observed c80373c9f6283fbefe40187169d29c4c...
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.