OT-2026-000000052
Publication integrity record
Resistance Spot Weld Quality Inference From Electrode Displacement
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-2026-000000052) never changes.
Identity and time
| Publication number | OT-2026-000000052 · never reused |
|---|---|
| Internal UUID | 01a0a672-762c-79f6-a151-060e3fb879cf · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:01:54.351641Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000052 |
| Status | PUBLIC |
Content hashes
| Canonical text | 8ba0e08b4344b1be584f035c95e39e4d83aaf941ae1e88a414efe57036127b6f |
|---|---|
| Markdown | 7cfedb99a89c59bea46fbc63c9c4093b5adb36ee0715fad283fcbe8b4dd5a624 |
| Publication page | 39a3246fb39e004abee3f0e3698a9308550e6a06a8e59982c23f965e063dfdc8 |
| Manifest | 7a84a5464f3d2bd345ea5d5c0d56182cc28c545b5880b54a1bc19b49b7d781ec |
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 | 9yMokDpIntqNwyI8viuZVMqjDQGqNlliqSZMXaRui8VNYq6qtC8iwQbY1sApOxfXkso4pK2EHMvgI9t6GxmsCQ== |
| 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
| 2026-10-22T08:41:58.340032Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000052observed 39a3246fb39e004abee3f0e3698a9308...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-22T08:41:58.287724Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000052/manifest.jsonobserved 7a84a5464f3d2bd345ea5d5c0d56182c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T08:41:58.202905Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000052/publication.mdobserved 7cfedb99a89c59bea46fbc63c9c4093b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T08:41:58.053385Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000052/publication.txtobserved 8ba0e08b4344b1be584f035c95e39e4d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:16.860791Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000052observed 39a3246fb39e004abee3f0e3698a9308...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:16.833730Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000052/manifest.jsonobserved 7a84a5464f3d2bd345ea5d5c0d56182c...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:16.818938Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000052/publication.txtobserved 8ba0e08b4344b1be584f035c95e39e4d...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 |
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