OpenTechnical

OT-2026-000000731

Publication integrity record

Method of operating a printing robot in shadows

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-2026-000000731) never changes.

Identity and time

Publication numberOT-2026-000000731 · never reused
Internal UUID01a0a673-c081-76ca-8af2-2cae5c40c521 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:18.914357Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000731
StatusPUBLIC

Content hashes

Canonical texta36eb9de6cdbbb4c851b70e51133d61560f5159b6869fdf7ed5dffcc728154b2
Markdown9338e14ab7e30aab3abe3b761b5a095c70d9318b32966844362de3ad31839c7d
PDF
Publication page58f3ae1bfa7477b990f6416a3093016735cce79488de2483676c5b1b231f0c54
Manifest789559e40cac34b4e6155722c3da49edba6b2baedb93bad6f5c7f8482bdacfd4

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
SignatureV0c2YjoGgpVR9cc+omfCq0jmqmvZuXXw/N6L2YZE6G3+BQ4Sy0SOiMw/Dy2TamAwv4fSbIeXF45kB7SXfa8JCQ==
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

2026-09-15T20:40:10.786082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000731
observed 58f3ae1bfa7477b990f6416a30930167...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:40:10.756043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000731/manifest.json
observed 789559e40cac34b4e6155722c3da49ed...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:40:10.741743ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000731/publication.txt
observed a36eb9de6cdbbb4c851b70e51133d615...
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