OpenTechnical

OT-2026-000057901

Publication integrity record

Three cup vacuum gripper, three outlet manifold, plant vacuum fed, supply line pressure sensor, vented 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-2026-000057901) never changes.

Identity and time

Publication numberOT-2026-000057901 · never reused
Internal UUID01a0ae88-6ed9-758a-9fe5-ac90313c6b2f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057901
StatusPUBLIC

Content hashes

Canonical textc0143d73d9e6150de3637f49f63649f08eceb2126e75250c3d310c30aa38b9b7
Markdown40be32fb4d2fb9fbc77d1502a5d6680e0a5ed50e6ef0546d02259a9fb567f816
PDF
Publication page52105e9002fc3906e1453b00277ef7bd39038a3eb02059cad055489d5b307a38
Manifest39ec99faace71ad855bc9d36116dc73f7e8cac04c97e3248b85a1ea481153fa6

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
SignatureeYbV1loM5HTmOQF8+6uaaNuGLnOAknYI3QfVr+HmJdD5quEFzeaCKRAOPWjuC9LPMqY52vxFyvEUChi/PQ1GDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:47:30.049738ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057901
observed 52105e9002fc3906e1453b00277ef7bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:30.029177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057901/manifest.json
observed 39ec99faace71ad855bc9d36116dc73f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:30.001559ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057901/publication.md
observed 40be32fb4d2fb9fbc77d1502a5d6680e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:29.890633ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057901/publication.txt
observed c0143d73d9e6150de3637f49f63649f0...
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.