OT-2026-000001812
Publication integrity record
Helical pin gripper
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-2026-000001812) never changes.
Identity and time
| Publication number | OT-2026-000001812 · never reused |
|---|---|
| Internal UUID | 01a0a678-ca90-75bb-a36d-1d327f291dae · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:08:49.169300Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001812 |
| Status | PUBLIC |
Content hashes
| Canonical text | 91ef96fd4ef586d05d1b820a370aa0014867d997b23af558cd07d90ee2f44f88 |
|---|---|
| Markdown | 780c603bcc125a36c1cc3d09a26c9ef40c0696103036b3d1de0d08ef6e516645 |
| Publication page | f0fda71eca6e7f5a0cfe99bf1720bf7f3a30f137a9b23890a384577696c1f6d8 |
| Manifest | 394d793969aaf788ebad6405d234837caad3544ef15a0433aedb9b61774c11f2 |
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 | +bhPp29JU15BuXjZ58wTlQsBprunjdJY3HLSmZ3Sd/JlqJyu8FdQc28042J5C0aLzzFX7AfstTUqjY4LRoCMAg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:27:02Z batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof root 2d7e364e718bd6a32072ec57f9edc195... |
|---|
Independent retrieval
| 2026-09-15T19:10:22.946333Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001812observed f0fda71eca6e7f5a0cfe99bf1720bf7f...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:10:22.918342Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001812/manifest.jsonobserved 394d793969aaf788ebad6405d234837c...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:10:22.904889Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001812/publication.txtobserved 91ef96fd4ef586d05d1b820a370aa001...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 |
|---|