OT-2026-000003471
Publication integrity record
Method and apparatus for transporting perforated objects
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-2026-000003471) never changes.
Identity and time
| Publication number | OT-2026-000003471 · never reused |
|---|---|
| Internal UUID | 01a0a6c4-b801-7dbf-809b-e8b7e11bc559 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T20:31:45.153820Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003471 |
| Status | PUBLIC |
Content hashes
| Canonical text | 3a3b7ca649b835d07a3b32b8417d11ae89482c046f4a8fe8347b2ed0e78a548b |
|---|---|
| Markdown | 0acf37e181f5948b096ecd71ee3cac51c8b2f6f286c022494f2141fca4ff6ae0 |
| Publication page | 4ed6f846e2d76c634537e1580bae5f121fa1bd070eac8ca343e2c6b1e7af7303 |
| Manifest | 64051b05b6e88b9cc0f623fa71b530d0dbaa87bedb4bb421182bce9086686a56 |
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 | cRPFecTXhg5FX7fPrpcedgFYx4gwGk6HH+DGKDLBiJBkcj4RHePnX+fD+TwG12I/glbJXKwHJAK+Mias4EYdBw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:36:25Z batch OT-TS-2026-W38-006 · RFC 3161 token · inclusion proof root 40fdb380c9f41bd58bb35c455dde2c7d... |
|---|
Independent retrieval
| 2026-10-21T08:42:22.238123Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003471observed 4ed6f846e2d76c634537e1580bae5f12...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-21T08:42:22.166114Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003471/manifest.jsonobserved 64051b05b6e88b9cc0f623fa71b530d0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T08:42:22.090105Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003471/publication.mdobserved 0acf37e181f5948b096ecd71ee3cac51...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T08:42:22.004043Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003471/publication.txtobserved 3a3b7ca649b835d07a3b32b8417d11ae...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T16:41:19.053535Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003471observed 4ed6f846e2d76c634537e1580bae5f12...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T16:41:19.005917Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003471/manifest.jsonobserved 64051b05b6e88b9cc0f623fa71b530d0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T16:41:18.948552Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003471/publication.mdobserved 0acf37e181f5948b096ecd71ee3cac51...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T16:41:18.735530Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003471/publication.txtobserved 3a3b7ca649b835d07a3b32b8417d11ae...fetched by grabo-systems from 34.44.131.203, 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 |
|---|