OpenTechnical

OT-2026-000064963

Publication integrity record

Four cup vacuum gripper, four zone face, pump fed, pressure sensor per zone, 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-2026-000064963) never changes.

Identity and time

Publication numberOT-2026-000064963 · never reused
Internal UUID01a0ae8d-debe-7ddc-9e31-7ca4302ff532 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:48.495161Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000064963
StatusPUBLIC

Content hashes

Canonical text4a3f8e9b0a7ed173b4edf68777050c0385150652573b4f908ef1afa95033f3a1
Markdown15cb15d580e32f4b3dc205149a965f40bcf2060879eeb4f47cbb98f12dc1be29
PDF
Publication pagefec510d61bb09a928bb31d5b94e4e8360f950a938fe4fb47c7eaf6115fc96a06
Manifest4172c7a84413801ac10fe0bd44c9fce6a970749074fc67d651f237f90d62a89b

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
Signature+wDDhrzk0hNIqN+mLPPtqIMEbAmaDEUMxknehGl7dJgod8hEm9GDOFCAwF3mpOREycgDvNULUtirKMLnucP4BQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:35:54.447903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064963
observed fec510d61bb09a928bb31d5b94e4e836...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:54.431393ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064963/manifest.json
observed 4172c7a84413801ac10fe0bd44c9fce6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:54.414774ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064963/publication.md
observed 15cb15d580e32f4b3dc205149a965f40...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:54.396272ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064963/publication.txt
observed 4a3f8e9b0a7ed173b4edf68777050c03...
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.