OpenTechnical

OT-2026-000030077

Publication integrity record

Two cup vacuum gripper, two outlet manifold, plant vacuum 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-2026-000030077) never changes.

Identity and time

Publication numberOT-2026-000030077 · never reused
Internal UUID01a0ae73-ac4a-790a-bafc-09bb66f23e05 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030077
StatusPUBLIC

Content hashes

Canonical text71d797e60c5872c5bf46ea8d756db83b8c21c67bdf8da7d868ace9136e4e9364
Markdownf7977a9c52610ddc075a054a090370c2704486ad89e6065ad620446ee21fbdb6
PDF
Publication pagedafa03e73184cf5a084767124d5117a12905225141c3f00c297775ffad9e395b
Manifest6bcfdc3cc17cee709add64e15405a852991ce0764c6f4fcc9f15400b605a9e65

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
SignatureFArjVhd/dExKbTVrTTd+MsxgdcMORTufMihkAEMLQ4jxYw/sW8PNYtzxphqcf1RGL/FUCenH707IEvmZX80IAA==
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

2026-09-17T11:38:49.390906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030077
observed dafa03e73184cf5a084767124d5117a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.374834ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030077/manifest.json
observed 6bcfdc3cc17cee709add64e15405a852...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.357733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030077/publication.md
observed f7977a9c52610ddc075a054a090370c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.340073ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030077/publication.txt
observed 71d797e60c5872c5bf46ea8d756db83b...
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.