OpenTechnical

OT-2026-000018651

Publication integrity record

Three cup vacuum gripper, three 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-2026-000018651) never changes.

Identity and time

Publication numberOT-2026-000018651 · never reused
Internal UUID01a0ae6e-d520-7248-9504-01ad80de8504 · 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-2026-000018651
StatusPUBLIC

Content hashes

Canonical text6c64c69c4cc02668088150a86dba9028cab7b1d43490ba6b7018edee282f4a98
Markdowna3e2f1e89036b4d25cd8fd46853a87087233b5c0d28530b82672c95fc9b129b2
PDF
Publication page800d59b6b520fd8cbb6d6affc5f1685279a0cefec66dcf105c15a175fb7f5106
Manifested398f83945c18028d7603ecf3079a57cfade7e54d4f27e8c4523c55373edb06

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
SignatureRYa+c4DZz5S2BTXGEbx4F/Fj5sFzmW34713sZa6i6bf4b+/b5kk76/rtyiXNI+nPdowoqmIV3YyzZV1z2AY2Cw==
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

2026-09-17T11:59:09.143593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018651
observed 800d59b6b520fd8cbb6d6affc5f16852...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:09.126507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018651/manifest.json
observed ed398f83945c18028d7603ecf3079a57...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:09.108463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018651/publication.md
observed a3e2f1e89036b4d25cd8fd46853a8708...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:09.091433ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018651/publication.txt
observed 6c64c69c4cc02668088150a86dba9028...
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.