OpenTechnical

OT-2026-000029219

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, two stage ejector, pulsed 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-2026-000029219) never changes.

Identity and time

Publication numberOT-2026-000029219 · never reused
Internal UUID01a0ae73-2aa0-7131-af9b-7eaeac858f9b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029219
StatusPUBLIC

Content hashes

Canonical text317cdbd6bc0971fb11077d1c49d025e8658dc49fff13bf13ab2063fef6b1ab75
Markdown29ff0077be5960ffa48671453da6a4370351a468ce975e22e00b05bbd87e75ac
PDF
Publication page39c3029058cc45c8fa51ab77a917ae128347e96c64300f12a64d5011e7c4b00e
Manifest0c3f9c6673c3bfe810d3ca5a0a12b603065c0e6f72d30e22ecfcb8ed3552259a

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
SignatureCU0FA7w3W4hYkl0WcMpin2FTmIq3bSDHM+m+8RClDVzcQheAuk2wWJOH+nH+fEtQ+yZ/QXwGSk+QiCL+pyupBQ==
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

2026-09-17T11:39:50.336358ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029219
observed 39c3029058cc45c8fa51ab77a917ae12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:50.318861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029219/manifest.json
observed 0c3f9c6673c3bfe810d3ca5a0a12b603...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:50.303010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029219/publication.md
observed 29ff0077be5960ffa48671453da6a437...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:50.287130ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029219/publication.txt
observed 317cdbd6bc0971fb11077d1c49d025e8...
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.