OpenTechnical

OT-2026-000026741

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, manifold pressure sensor, 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-2026-000026741) never changes.

Identity and time

Publication numberOT-2026-000026741 · never reused
Internal UUID01a0ae71-f4ab-7f5c-af53-3a6c68c00776 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026741
StatusPUBLIC

Content hashes

Canonical text42b21d8837e114ecb3f9f1b84be78cfcb8232f3ea81eab6c9a38c432660d034e
Markdownc9c742a41cf4e5e46cb2a545259b71346c6694dcf29e7021f1cab4bc80b6402c
PDF
Publication pagedb2d83eae9f1558b421c83f65f516046eb04fcb49a3f8d6cc192b459ee0aa5ee
Manifestfa26cc0075fa6b78af1a68476a3e1d20d9801afa0362a5f406fe14cc51e54065

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
SignaturehGDcUIaj589OoxclierAMUI2tCySc/fepwoUHRyuEAGLNFNeh6dgIT348ttvzuCE4FIgV0sNvVcIltjhFSKPBg==
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

2026-09-17T11:45:55.643850ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026741
observed db2d83eae9f1558b421c83f65f516046...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:55.626622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026741/manifest.json
observed fa26cc0075fa6b78af1a68476a3e1d20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:55.606366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026741/publication.md
observed c9c742a41cf4e5e46cb2a545259b7134...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:55.590406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026741/publication.txt
observed 42b21d8837e114ecb3f9f1b84be78cfc...
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.