OpenTechnical

OT-2026-000100518

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, three stage ejector, pressure sensor per zone, sustained 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-2026-000100518) never changes.

Identity and time

Publication numberOT-2026-000100518 · never reused
Internal UUID01a0aea3-66f0-78c0-bd78-6ae320a9450e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:19.463543Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100518
StatusPUBLIC

Content hashes

Canonical text489bce61ae3257b837401e4d3b7d50e5c01e59242fcf8552b7f5bf89cddbb142
Markdownb109b37ebb86d5e6cc9d12d76f4cf0eecf19f69a659c19154aad56166cb22658
PDF
Publication page5785b8803b6e4291162110da5c5af124bdc52b1f9233c4595d416e513a60dded
Manifestf4fc473cc482e49cf90c56ad3ea009ca03d1dd7948294ebee5cc17cad918885e

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
SignatureBcQ5JV99idPQB2SqaMwb1lo97CW7WG75SIIxXkpO1+pcKs9xyFvydDRPO9XO7zz23zAefcy0JNpHCiOwYL8SCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:27:17.124494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100518
observed 5785b8803b6e4291162110da5c5af124...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:17.106339ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100518/manifest.json
observed f4fc473cc482e49cf90c56ad3ea009ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:17.088296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100518/publication.md
observed b109b37ebb86d5e6cc9d12d76f4cf0ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:17.071043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100518/publication.txt
observed 489bce61ae3257b837401e4d3b7d50e5...
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.