OT-2026-000002413
Publication integrity record
Learning physical features from tactile robotic exploration
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-2026-000002413) never changes.
Identity and time
| Publication number | OT-2026-000002413 · never reused |
|---|---|
| Internal UUID | 01a0a67c-74fb-7efa-97ae-d3472771b7bb · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:12:49.403634Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002413 |
| Status | PUBLIC |
Content hashes
| Canonical text | 3d675e542143795f1fbe973d9afc2c2c9b041e46897d5c128e37d81dd5be2be2 |
|---|---|
| Markdown | 467679cf8bc666d108e4b7d4da748e2ce53c14881122d33e459c11052441e5ce |
| Publication page | dfe0cb5ec21ca09cd1596543d955d55f8e64fd4cbacba0e37e7245efce7a697f |
| Manifest | 2d88d019ac8ca97ea2978522d10ce2919453de8258ba4c44bfb10fb2d19681e1 |
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 | S4y5ou34zeExOZu47lDmJNjKFF6hBCF2/irmL83QVUTaVNp7Vd7UeNH1HLG8RAb+ldCkAeVPZbvo2zDZUFuiBw== |
| 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
| 2026-09-16T16:41:36.342317Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002413observed dfe0cb5ec21ca09cd1596543d955d55f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T16:41:36.218085Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002413/manifest.jsonobserved 2d88d019ac8ca97ea2978522d10ce291...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:41:36.061202Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002413/publication.mdobserved 467679cf8bc666d108e4b7d4da748e2c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:41:35.914863Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002413/publication.txtobserved 3d675e542143795f1fbe973d9afc2c2c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:43:54.762415Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002413observed dfe0cb5ec21ca09cd1596543d955d55f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:43:53.762969Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002413/manifest.jsonobserved 2d88d019ac8ca97ea2978522d10ce291...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:43:53.028628Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002413/publication.mdobserved 467679cf8bc666d108e4b7d4da748e2c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:43:52.368210Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002413/publication.txtobserved 3d675e542143795f1fbe973d9afc2c2c...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 |
|---|