OpenTechnical

OT-2026-000020154

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, common isolation valve, three stage ejector, supply line 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-2026-000020154) never changes.

Identity and time

Publication numberOT-2026-000020154 · never reused
Internal UUID01a0ae6f-4379-79e5-b0dd-1b3b8c0735b6 · 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-2026-000020154
StatusPUBLIC

Content hashes

Canonical text69db8b1d0f748b652bfa1b096fb5f23567f2b50a01f9b17b0c7a9d4b5cfb545b
Markdown6a624f2b88f6676bfd4f5f3d72d63e9a9764f600c3f3faaff4869695502f12b5
PDF
Publication pagead23c225cc3e2751b3b1f3a6c05b9ab4bf9bfac433b22ed1c51e1b37a664b72d
Manifestc33ab6afb3e3945abf02556076971c14e89ada069b6ee97d107a57c69dcbf5d1

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
SignatureaOCqv8RWZfVtwOoyYcjkZbiq5dPwT7pW0S2eJN5xLKhr0Cg0EEDUBOLTjYKmcCZyM4qR+2S2wILOZ3bQZy/rCw==
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

2026-09-17T11:56:28.058225ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020154
observed ad23c225cc3e2751b3b1f3a6c05b9ab4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:28.040620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020154/manifest.json
observed c33ab6afb3e3945abf02556076971c14...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:28.023952ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020154/publication.md
observed 6a624f2b88f6676bfd4f5f3d72d63e9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:28.006366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020154/publication.txt
observed 69db8b1d0f748b652bfa1b096fb5f235...
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.