OpenTechnical

OT-2026-000019603

Publication integrity record

Three bellows cup vacuum gripper, three zone face, 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-2026-000019603) never changes.

Identity and time

Publication numberOT-2026-000019603 · never reused
Internal UUID01a0ae6e-f394-7ad3-a566-a2c582b3aafe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019603
StatusPUBLIC

Content hashes

Canonical textb0cb1a1327efc992c37e507507abea925f44b9d5b55ecc0f16fb331ffd348ebc
Markdown4837079aeb217411a99c8f09fea2f84b08ab13619ae05864a65e5c184567f6c3
PDF
Publication pageebb588be6b171c220dd395e16ba29759a41c4b6ea6d2d223f1aeaa933b441d63
Manifest49e4c31d7e323f4a7bc1e09c2201285e8ccc814e2c6e87576d366be1531d12d4

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
Signaturehd+DLU7e0o009nSYDTDYQpZRjMeGULiOzj8M6wOsRiM+27pqbw26tdAp3Tq1Kl6tPVDDVGdOUf18aAgbKWCOCA==
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

2026-09-17T11:59:03.436389ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019603
observed ebb588be6b171c220dd395e16ba29759...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:03.419749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019603/manifest.json
observed 49e4c31d7e323f4a7bc1e09c2201285e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:03.401393ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019603/publication.md
observed 4837079aeb217411a99c8f09fea2f84b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:03.384097ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019603/publication.txt
observed b0cb1a1327efc992c37e507507abea92...
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.