OpenTechnical

OT-2026-000050253

Publication integrity record

Two cup vacuum gripper, two outlet manifold, three stage ejector, vented 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-2026-000050253) never changes.

Identity and time

Publication numberOT-2026-000050253 · never reused
Internal UUID01a0ae82-5c46-7a9d-be58-0255b047d619 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050253
StatusPUBLIC

Content hashes

Canonical textf44c51f12be274f4d981cd928d730b6982340020d351ab55b20df3922cd05059
Markdownb6c58f1902e11eca76ffdc0a87e9cbb413a5020085bbf5f89f0a28896b9cba5c
PDF
Publication pageb80468b026552ef5a69eee1a06b8b48341cb6fc340155617cef91b89c1599cd5
Manifest0a07001b765748c31e0b7fc36d386ea7ad11047ff8e3de4dd4f2a433a16ce1b3

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
SignatureWySblE91OcCTov7xzdd4CrRJ/MXxoQ7hhIza9om6n+iLqrLIJC03hgC043XTzoSO83Bb6FmsYrJ5i6e3tMdIAA==
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

2026-09-17T11:01:15.163876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050253
observed b80468b026552ef5a69eee1a06b8b483...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:15.146272ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050253/manifest.json
observed 0a07001b765748c31e0b7fc36d386ea7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:15.129637ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050253/publication.md
observed b6c58f1902e11eca76ffdc0a87e9cbb4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:15.112810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050253/publication.txt
observed f44c51f12be274f4d981cd928d730b69...
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.