OT-2026-000000413
Publication integrity record
Arithmetic apparatus, arithmetic system, robot system, arithmetic method, and computer program
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-2026-000000413) never changes.
Identity and time
| Publication number | OT-2026-000000413 · never reused |
|---|---|
| Internal UUID | 01a0a673-54b0-7fdb-b260-fe260135d146 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:51.312850Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000413 |
| Status | PUBLIC |
Content hashes
| Canonical text | 466ca121c47a4e6c21d7842620ba6da6e15136ef4351d9a2890c36b7c9c35883 |
|---|---|
| Markdown | 2e4b713096f103bc710a7f4c9a79decc2fcd7a2eddb24eb4cad4f881c1d6387e |
| Publication page | 3ebe27b8ef817c3f537b6cf381499596ad9e772f51fe389e0ed55eab73a77bc5 |
| Manifest | 5f213941b11695a602b23fefb1c2497e187dca8ded0f15a64e5a6d150a4bdc8d |
SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.
Manifest signature
| Algorithm | Ed25519 · key
OT-SIGN-2026-01 · Verified |
|---|---|
| Signature | Zr2Yun+O3Y3tpTIGJT5yuewViG/XNNMNutOVfLcfMUB/ppDtTgmSMI3xP8ydjOJ3aRg9zwtvOV44ap5Whr51Dg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:07:03Z batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof root 6369baadb1a246009d149835804d20ba... |
|---|
Independent retrieval
| 2026-09-15T20:50:12.755963Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000413observed 3ebe27b8ef817c3f537b6cf381499596...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:50:12.598103Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000413/manifest.jsonobserved 5f213941b11695a602b23fefb1c2497e...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:12.586096Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000413/publication.txtobserved 466ca121c47a4e6c21d7842620ba6da6...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 archive | Pending 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-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|