OpenTechnical

OT-2026-000012307

Publication integrity record

Three bellows cup vacuum gripper, three zone face, plant vacuum fed, 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-2026-000012307) never changes.

Identity and time

Publication numberOT-2026-000012307 · never reused
Internal UUID01a0ae6d-39f5-7d55-ba7a-8c9d698992e7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012307
StatusPUBLIC

Content hashes

Canonical text73647cde3c24cfc66ffd77bf796a6d0266449c89c348446ff748129a791b9686
Markdownc05a6426bbfd3b8c449ec3f0b3d77a0bcc482cdef5d0400ffe10720fdd3b9762
PDF
Publication page4c7a0597d09e3000151264cf1e323ac4cfe0a4158b8673a5ec3d41285e475a1b
Manifest20f240d62c041cad18c6fef12154e4553c2a6df3f441a54fbf078b9e0200098e

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
SignatureyXrP8IHlswnhA1ccNDmPIa4zBbdK9AM1s4pLIJUck67JICaFedEDjInJDvs5bp5RAr8I4uEH2IUd95APStYmDA==
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

2026-09-17T12:11:15.109858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012307
observed 4c7a0597d09e3000151264cf1e323ac4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:15.091904ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012307/manifest.json
observed 20f240d62c041cad18c6fef12154e455...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:15.071911ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012307/publication.md
observed c05a6426bbfd3b8c449ec3f0b3d77a0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:15.053923ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012307/publication.txt
observed 73647cde3c24cfc66ffd77bf796a6d02...
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.