OT-2026-000002756
Publication integrity record
Torsion spring tensioning tool
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-2026-000002756) never changes.
Identity and time
| Publication number | OT-2026-000002756 · never reused |
|---|---|
| Internal UUID | 01a0a67e-95cd-7662-a470-6e763a469bd4 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:15:08.878107Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002756 |
| Status | PUBLIC |
Content hashes
| Canonical text | 6070c5d70968028c4d9f6f77ac5bf742d36b76b3e54a9e0b996d539668fb1519 |
|---|---|
| Markdown | 4f42bbb43d2b4086d11d2938ea860a7a152a9a3fcbe62ee82dcf00f900cf501d |
| Publication page | 27007b231bf24a9b2b185926b07e66080e514646395d2de026a9d281d6bd28ac |
| Manifest | 6b33595111bd20bbc6aae9e3ab98351bede59da0892cc270f4f43d83f16b48fb |
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 | OuPuv7UA2wNlUp46PQ01tJRtE9vN1qt9qpGE2C/4HbE3owmkAWXHVU/2f3W5qEn0iKBV0UC7D4ex0wiYa1peCg== |
| 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
| 2026-09-15T19:30:08.383487Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002756observed 27007b231bf24a9b2b185926b07e6608...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:30:08.355538Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002756/manifest.jsonobserved 6b33595111bd20bbc6aae9e3ab98351b...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:30:08.342000Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002756/publication.txtobserved 6070c5d70968028c4d9f6f77ac5bf742...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 |
|---|