OpenTechnical

OT-2026-000020268

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, pulsed blow-off before set-down

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-2026-000020268) never changes.

Identity and time

Publication numberOT-2026-000020268 · never reused
Internal UUID01a0ae6f-437a-72d2-b89b-fa7269c76530 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020268
StatusPUBLIC

Content hashes

Canonical text3a60b0785fde6d17509c5dd38472a713b29ace7829c739e38b55ed5fda0c39a2
Markdown0ad63de7aa8304e7f56a6bf02fa1614e0043830278f37f75de4b55f4c4a0a145
PDF
Publication pagebb3c19407771a4733f37a54c3f0324281e3eb7961f01e8d006b97eb3810ace6b
Manifest3abb06f3bc5339a1acea6ccf942b22c9bb4aada14b8a9e3a284c3aeab067c8ca

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
Signature2pAWHMi2nyL7xT4NRXekTcnh5Qh2g8XfH1hyO1VLLr3udGjoxrU62CLb9lTz8ktMJm7d/3IfMbFZoBNeZO7UDQ==
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

2026-09-17T11:56:37.040844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020268
observed bb3c19407771a4733f37a54c3f032428...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:37.024365ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020268/manifest.json
observed 3abb06f3bc5339a1acea6ccf942b22c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:37.005433ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020268/publication.md
observed 0ad63de7aa8304e7f56a6bf02fa1614e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:36.987389ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020268/publication.txt
observed 3a60b0785fde6d17509c5dd38472a713...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent