OpenTechnical

OT-2026-000043669

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, sustained 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-2026-000043669) never changes.

Identity and time

Publication numberOT-2026-000043669 · never reused
Internal UUID01a0ae7b-92d0-756b-bbf3-ae1b12e7e1c2 · 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-2026-000043669
StatusPUBLIC

Content hashes

Canonical text59286b71df0a8cc7ffe0f55fc0ad27a3ca4cee414bf6ac1558ffb279e46ad106
Markdown35e6f0af51f4be7f61f6e4180daeed4fd7cea1a87ec288e57800be788c322263
PDF
Publication page44891163a3f51aafbbc7c7561fdc468700e1d398e49fcf8d96fa399fcf575c9b
Manifestf3013aee4a39c8c19ece030b314fc64b4175e6b89a5e93bb3712a1fc6c80da9c

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
SignatureB0x6CPC746iLgUUSFOW0XvY295nRBbmwm/KDMc272qtmzfEctxcWGeweOeowAV93OSbTE4uM1Sv4LOdCyCAJBA==
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

2026-09-17T11:13:09.376897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043669
observed 44891163a3f51aafbbc7c7561fdc4687...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:09.360078ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043669/manifest.json
observed f3013aee4a39c8c19ece030b314fc64b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:09.342651ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043669/publication.md
observed 35e6f0af51f4be7f61f6e4180daeed4f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:09.324367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043669/publication.txt
observed 59286b71df0a8cc7ffe0f55fc0ad27a3...
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.