OpenTechnical

OT-2026-000062621

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, vented after 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-2026-000062621) never changes.

Identity and time

Publication numberOT-2026-000062621 · never reused
Internal UUID01a0ae8c-0ac1-7615-a998-d36ded5898fb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:48.542263Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062621
StatusPUBLIC

Content hashes

Canonical text462e9b46cea903f5354675e01c18aeb220c8e426de9e622083439d7e7fd85795
Markdown6e553c83473917e6d138e19c255468698a52bb78351239c35e295174863fec8a
PDF
Publication page3bc6d2035e4de70805b6b6dac08f229fdb3e4a77fe2df9f9c8901ec1af812288
Manifest250dcb44826ba783bc3b69bc5c34f284be832336ac0bd461fc0dbc305f6e0a80

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
SignatureFuasfusNnLBDv8Isuq2Vv9d60JN1Zhl1aVEuDDHgd1ySXBicuKiHSyWV4HkNdj2n0PLBsIz+hrksay08et6EDw==
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

2026-09-17T10:40:07.782010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062621
observed 3bc6d2035e4de70805b6b6dac08f229f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:07.761863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062621/manifest.json
observed 250dcb44826ba783bc3b69bc5c34f284...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:07.741420ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062621/publication.md
observed 6e553c83473917e6d138e19c25546869...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:07.722785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062621/publication.txt
observed 462e9b46cea903f5354675e01c18aeb2...
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.