OpenTechnical

OT-2026-000020561

Publication integrity record

Two cup vacuum gripper, two outlet manifold, plant vacuum 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-2026-000020561) never changes.

Identity and time

Publication numberOT-2026-000020561 · never reused
Internal UUID01a0ae6f-437c-7b02-a886-f9bbf7e670a2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020561
StatusPUBLIC

Content hashes

Canonical text324d0e310f579b18a871a0115436754de8b38b10f0282dd069102e36a764a262
Markdown5620177f5c92f54c3ac9d6940161b6f574d4f7ead9f9e64163ccda7c0daa2367
PDF
Publication page3b77d24a0e544ec5224318dfced89dd884a6f005d5e218f3775ca37e015910b8
Manifest6262f0e701f9c9ec353cad71fe8b653fd0fe6c9962040924a624e8607f8100a0

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
SignatureQfypRCFl50Oh9XIcvxTQO2BxfLgrNqyIW0jWuzmAC5KikTTh0MGdOfEusjakv2wm9ac20vvPk9QMf+735JzMCA==
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

2026-09-17T12:00:40.634685ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020561
observed 3b77d24a0e544ec5224318dfced89dd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:40.614581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020561/manifest.json
observed 6262f0e701f9c9ec353cad71fe8b653f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:40.594142ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020561/publication.md
observed 5620177f5c92f54c3ac9d6940161b6f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:40.569050ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020561/publication.txt
observed 324d0e310f579b18a871a0115436754d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:35.660756ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020561
observed 3b77d24a0e544ec5224318dfced89dd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:35.639667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020561/manifest.json
observed 6262f0e701f9c9ec353cad71fe8b653f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:35.619037ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020561/publication.md
observed 5620177f5c92f54c3ac9d6940161b6f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:35.601781ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020561/publication.txt
observed 324d0e310f579b18a871a0115436754d...
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.