OpenTechnical

OT-2026-000020774

Publication integrity record

Three pad foam vacuum gripper, three 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-2026-000020774) never changes.

Identity and time

Publication numberOT-2026-000020774 · never reused
Internal UUID01a0ae6f-65e3-7a2e-a794-986fb4323e2c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020774
StatusPUBLIC

Content hashes

Canonical text592ede3090de318254632fb3a5e42d23db3b93e05b4d95ddb24857d92c223fee
Markdown7c7913eca74c7697ca7f6ad2e71f1645b81691474b3daa54e26655608cdf60d7
PDF
Publication page2125aaacbb33a807f9f11eb1c828f0b37ec596688f4ce271e266042fec356468
Manifestc2d80d322c95d5eca47fdac0d1dc589c7af07f66bed77308c542a4f859681650

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
SignaturevaxapLzBMhEJd0uYLq6Fe5RoZdKSUYl49Y33Pp2mIiBmNcYzKUNsSuNoNMfCW8gVPo3KG4gxz3WXs0CwRonzAw==
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

2026-09-17T11:55:51.131346ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020774
observed 2125aaacbb33a807f9f11eb1c828f0b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:51.111811ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020774/manifest.json
observed c2d80d322c95d5eca47fdac0d1dc589c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:51.093334ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020774/publication.md
observed 7c7913eca74c7697ca7f6ad2e71f1645...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:51.073656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020774/publication.txt
observed 592ede3090de318254632fb3a5e42d23...
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.