OpenTechnical

OT-2026-000000991

Publication integrity record

Robotic kitchen system with grease-compensating markers to identify and locate objects in the kitchen workspace

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-2026-000000991) never changes.

Identity and time

Publication numberOT-2026-000000991 · never reused
Internal UUID01a0a674-1b4f-77a6-a045-bc1cf1e4eea7 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:42.159675Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000991
StatusPUBLIC

Content hashes

Canonical text569838bd1c24c45d82119ac6e707bfbd38a36a788c3d11b8c120788e1041e9b7
Markdown48ae7416ecbbee2e0f2f93bb8a6d5da0f6b4f37d302ff1a9f25bc5b6582999c4
PDF
Publication page7636787d668d72e6cd60639e7c59fb46f5a058f5f283c8f46d6b10d4cb805f7f
Manifestc7489644e63746a53687458ec2fc2e20d4614b5f49641c2fb51c31275b177a80

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
SignaturevuhuUFvxbqSDfj+YkxZVXkbTtS8Kpg1fKDp5ozILkjVl9g5pPh+1ryJO7zsAm5pgZAmYNtFKqhm9Mfs/Gq7rDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:07:03Z
batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof
root 6369baadb1a246009d149835804d20ba...

Independent retrieval

2026-09-16T08:42:53.463629ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000991
observed 7636787d668d72e6cd60639e7c59fb46...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:42:52.912307ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000991/manifest.json
observed c7489644e63746a53687458ec2fc2e20...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:42:52.392664ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000991/publication.md
observed 48ae7416ecbbee2e0f2f93bb8a6d5da0...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:42:51.701763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000991/publication.txt
observed 569838bd1c24c45d82119ac6e707bfbd...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:20:36.855569ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000991
observed 7636787d668d72e6cd60639e7c59fb46...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:20:36.826772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000991/manifest.json
observed c7489644e63746a53687458ec2fc2e20...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:20:36.813555ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000991/publication.txt
observed 569838bd1c24c45d82119ac6e707bfbd...
fetched by instance-3.rotem.ai from 127.0.0.1, 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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent