OpenTechnical

OT-2026-000100503

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two 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-2026-000100503) never changes.

Identity and time

Publication numberOT-2026-000100503 · never reused
Internal UUID01a0aea3-66f0-72cf-9b05-b30c9e9a40af · 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-2026-000100503
StatusPUBLIC

Content hashes

Canonical text1c91f7924fe02923e66e044a7a88ebf01ef0775fd632d3991b1619eb5b7cff23
Markdown3f016ba54f0afd7f67261250e735640ff7537351bc00a6cdd3370f6c589790a2
PDF
Publication page62f2d1bc94b482d589a22b9dc53b4e7b6e17cf3b44baad32b9e67098ecff9e30
Manifestf59242948c5faf30c555db2ecb28f8d28e6bbd5316340f303ec250d78c478a77

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
SignatureGoJWPuxGySuekUd6LsxViKNxTbKbJuslmotS+er1TswOXcpBaLjsMamiigvYAg9phcTZMCF0G3XDhnXYkpfhDA==
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

2026-09-17T09:27:16.058884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100503
observed 62f2d1bc94b482d589a22b9dc53b4e7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:16.042186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100503/manifest.json
observed f59242948c5faf30c555db2ecb28f8d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:16.024213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100503/publication.md
observed 3f016ba54f0afd7f67261250e735640f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:16.009401ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100503/publication.txt
observed 1c91f7924fe02923e66e044a7a88ebf0...
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.