OpenTechnical

OT-2026-000000891

Publication integrity record

Robot for assisting with and performing household chores

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-2026-000000891) never changes.

Identity and time

Publication numberOT-2026-000000891 · never reused
Internal UUID01a0a673-f76f-7bfc-a5d3-14fcf84ccd6e · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:32.975472Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000891
StatusPUBLIC

Content hashes

Canonical text7964404da8b70400c5b77a22eddbdb03c58e076b31872ab102f82092f4aecb72
Markdown718f182698c5b1bbdb641125005e72527a7d1d4d07f279ec56b381abdb3f3e3f
PDF
Publication pagef274d71ddc5fc90fc69fa4c277e78f6d670d0d29a0cafcb71dd4dc853e5110ed
Manifest1f13ead6746cd4e5e70a590c61d7ff82b49308722b1d904b6ee04cf5f20b7d0d

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
Signature1Yi+2ILnhENBs88b+6eCNgCDBNktkEHa+3pvxdUM7uTugrFiuSIP58EYy9SfThKl9PhCXgc+8AFGrKr0AlMrDg==
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

2026-10-14T20:41:09.535936ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000891
observed f274d71ddc5fc90fc69fa4c277e78f6d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-14T20:41:09.466171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000891/manifest.json
observed 1f13ead6746cd4e5e70a590c61d7ff82...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-14T20:41:09.393652ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000891/publication.md
observed 718f182698c5b1bbdb641125005e7252...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-14T20:41:09.269117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000891/publication.txt
observed 7964404da8b70400c5b77a22eddbdb03...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:30:23.151895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000891
observed f274d71ddc5fc90fc69fa4c277e78f6d...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:23.117946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000891/manifest.json
observed 1f13ead6746cd4e5e70a590c61d7ff82...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:22.978548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000891/publication.txt
observed 7964404da8b70400c5b77a22eddbdb03...
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