OpenTechnical

OT-2026-000023421

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, sustained 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-2026-000023421) never changes.

Identity and time

Publication numberOT-2026-000023421 · never reused
Internal UUID01a0ae70-7268-73a6-9b4e-36a5bab62bd3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:40.056870Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023421
StatusPUBLIC

Content hashes

Canonical text09e844c96c749747cf316681314533d6074c5e0309c52c88a853b64f65b8e7a3
Markdownf52427598e715e3970c3620356582caedb501788afab45e4e4b451a62c19251f
PDF
Publication page4eaf6fee7188050aeeba4abaaddd23da9fe5b93b49c26f562abe2b2ac588f5d3
Manifestb64bddd34114ee60e7cb7768fd5b0d8eab04b88b347f5eeb816f10fb1dec7136

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
SignatureE+UJTOj4m+pI/aBC1dKC0URyKKCqBfJXDAOuYjBh2nO7nMsFfkd+fgZs0UsH6gFEUJrlyj9mc2S9PBLQH2gpCA==
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

2026-09-17T11:51:37.817610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023421
observed 4eaf6fee7188050aeeba4abaaddd23da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:37.800920ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023421/manifest.json
observed b64bddd34114ee60e7cb7768fd5b0d8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:37.784665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023421/publication.md
observed f52427598e715e3970c3620356582cae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:37.766934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023421/publication.txt
observed 09e844c96c749747cf316681314533d6...
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.