OpenTechnical

OT-2026-000067521

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, vented 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-2026-000067521) never changes.

Identity and time

Publication numberOT-2026-000067521 · never reused
Internal UUID01a0ae8f-6bda-7303-bb09-6d01380a8417 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067521
StatusPUBLIC

Content hashes

Canonical textb9d68e6fb0a1a6cc11c181036171b55b55cc2a33ea9d17f8fe0cc684efc72a6c
Markdown7a455536a4fd22bbc842362af4da63af1bd7d9de51a5cb57c5d9557e4013773b
PDF
Publication paged38c08dd5bdab1e69bf896262da8c787487009d2de8141db7e79182df66648c1
Manifest337e24553473a1a4683104d9ac862b348ac44e86d4d99614e47806374e1868cd

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
SignaturekGOothZHMkhspbOEnbPQ2JBW5WajV9tzaDs0FHJdXGit/rpM+j9e4EjEvFzAA4ZKqOZaAvBcq8KXDiuXz1sjDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:31:49.288751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067521
observed d38c08dd5bdab1e69bf896262da8c787...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:49.271976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067521/manifest.json
observed 337e24553473a1a4683104d9ac862b34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:49.254924ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067521/publication.md
observed 7a455536a4fd22bbc842362af4da63af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:49.237697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067521/publication.txt
observed b9d68e6fb0a1a6cc11c181036171b55b...
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.