OT-2026-000000103
Publication integrity record
Flexible metallic coupling for drive shafts made by additive manufacturing
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-2026-000000103) never changes.
Identity and time
| Publication number | OT-2026-000000103 · never reused |
|---|---|
| Internal UUID | 01a0a672-ffcd-744c-81f6-329913c07a82 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:29.581796Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000103 |
| Status | PUBLIC |
Content hashes
| Canonical text | ee9fa456d02395af1362ca59f91a1a6979758868b5b36d1abf45edfc701f1f9c |
|---|---|
| Markdown | b19668201dc909e566afa7040026ce4026530d1bb2e322e3777a911e2e9fefb1 |
| Publication page | d9f9a7e8dcc092c3ee6cfe12e3c48a5b99dabcee5905ced7705ac7557c331a01 |
| Manifest | 4705da3d4d7c72fec38e47aa858de03662701b2208b6a2732b3a6804558a658b |
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 | 4fi60GdWebElwVSOQDD1HRyM+C3z4R/EaPv1UEC8AxuxOSTr85vW6zmY5jXOVMMjjxhVdQevGSHnrvc+gVynBw== |
| 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
| 2026-09-15T21:00:11.580406Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000103observed d9f9a7e8dcc092c3ee6cfe12e3c48a5b...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T21:00:11.423655Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000103/manifest.jsonobserved 4705da3d4d7c72fec38e47aa858de036...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:11.411057Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000103/publication.txtobserved ee9fa456d02395af1362ca59f91a1a69...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 |
|---|