OT-2026-000000189
Publication integrity record
Constant rake fluted drill bit and method of manufacture
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-2026-000000189) never changes.
Identity and time
| Publication number | OT-2026-000000189 · never reused |
|---|---|
| Internal UUID | 01a0a673-16a2-7509-b8fc-ec95a65927cd · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:35.427185Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000189 |
| Status | PUBLIC |
Content hashes
| Canonical text | 8563a934cabbf26fedbc26d72b599cc5583e595d81d5965f35575bfa58006508 |
|---|---|
| Markdown | 9ca95d428cd46bd1a9dd24a820fcfc6162702f362c77c9ff11853d7e6ad0ec69 |
| Publication page | 2f4de1d8774e74ada8911303acd12d71bbd208727f8a92c31abae0d475137bd3 |
| Manifest | c1c6410093321aa9789e254679a19e2eddfd5240a1b08a5a70bbc925727294bb |
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 | N4QuS0SUWytzGOeUUj6d5xEkrOLMccmxbb9jN8rBoXceDafEKsVhyPI9cu6/Tzxf9eTBR9REsnX6FGP/M18TAA== |
| 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
| 2026-10-01T04:41:23.142608Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000189observed 2f4de1d8774e74ada8911303acd12d71...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-01T04:41:23.085056Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000189/manifest.jsonobserved c1c6410093321aa9789e254679a19e2e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T04:41:23.031058Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000189/publication.mdobserved 9ca95d428cd46bd1a9dd24a820fcfc61...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T04:41:22.929277Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000189/publication.txtobserved 8563a934cabbf26fedbc26d72b599cc5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:38.804212Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000189observed 2f4de1d8774e74ada8911303acd12d71...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:38.773989Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000189/manifest.jsonobserved c1c6410093321aa9789e254679a19e2e...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:38.760235Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000189/publication.txtobserved 8563a934cabbf26fedbc26d72b599cc5...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 |
|---|