OpenTechnical

OT-2026-000043604

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, pulsed blow-off after 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-2026-000043604) never changes.

Identity and time

Publication numberOT-2026-000043604 · never reused
Internal UUID01a0ae7b-92d0-7025-bb2f-901953661a09 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043604
StatusPUBLIC

Content hashes

Canonical text6ab5f6986f80c4a5759c12b8940e8fcfa7ce4075f38c587a495821080abc7386
Markdownb31910b2c8a686bb2f68bf18368985621439394c2c4d2890a3ab1e8f4d2c4d36
PDF
Publication page36657132e6b305293fe7dec82671c8c111729069c4bc836736d9354487f558fa
Manifest1d90eb57f78ed66f5fb33b136915b38005d8937a6653187df150a1d64468cbbd

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
Signature7qW/Fbi+0IJ6tgSRqbC0v+Ui3wqn5tgDVYAy8AbUwkDSALuTwCi3Qe1TqNBxBxlTX7fiibxotu3cwZFT9Dg3Ag==
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

2026-09-17T11:13:00.691668ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043604
observed 36657132e6b305293fe7dec82671c8c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:00.672473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043604/manifest.json
observed 1d90eb57f78ed66f5fb33b136915b380...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:00.653396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043604/publication.md
observed b31910b2c8a686bb2f68bf1836898562...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:00.631629ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043604/publication.txt
observed 6ab5f6986f80c4a5759c12b8940e8fcf...
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.