OT-2026-000002609
Publication integrity record
Passive control system for an everting sheath
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-2026-000002609) never changes.
Identity and time
| Publication number | OT-2026-000002609 · never reused |
|---|---|
| Internal UUID | 01a0a67d-b272-7f0b-904a-6e15e2c6cfe0 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:14:10.674661Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002609 |
| Status | PUBLIC |
Content hashes
| Canonical text | b1af79f0093a518bf034278537f56263aa25b74c57bc7de51d0f6e18fe16ff40 |
|---|---|
| Markdown | 6da821d03556022a4b07d473324fc3915e0cc2d51e14e9ce79671cccfad00264 |
| Publication page | 3975228e228381f92a1c0e7f849c5a1b8bb757f17201000464d4503800d81406 |
| Manifest | a126744eaf20ae6d21752a536ebeb47b0ebf8cd420f4c7d7e52c2c33b41aaaf0 |
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 | sj0aVVGt71XvCXKYvxRSmGtNL0u63UjgybFlxLX6jCfWdYwFFWczDUOm4/88E1Wqn2xv4Ww2wYuY8l4degKBCg== |
| 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
| 2026-10-01T12:41:55.905060Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002609observed 3975228e228381f92a1c0e7f849c5a1b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-01T12:41:55.830313Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002609/manifest.jsonobserved a126744eaf20ae6d21752a536ebeb47b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T12:41:55.751206Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002609/publication.mdobserved 6da821d03556022a4b07d473324fc391...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T12:41:55.631082Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002609/publication.txtobserved b1af79f0093a518bf034278537f56263...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T20:41:26.689378Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002609observed 3975228e228381f92a1c0e7f849c5a1b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T20:41:26.597782Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002609/manifest.jsonobserved a126744eaf20ae6d21752a536ebeb47b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T20:41:26.507911Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002609/publication.mdobserved 6da821d03556022a4b07d473324fc391...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T20:41:26.378733Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002609/publication.txtobserved b1af79f0093a518bf034278537f56263...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 |
|---|