OT-2026-000011902
Publication integrity record
Four finger pneumatic gripper, stripped after set-down, on a tool changer
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-2026-000011902) never changes.
Identity and time
| Publication number | OT-2026-000011902 · never reused |
|---|---|
| Internal UUID | 01a0ae6d-1942-79d0-a9f1-88a52da4bd30 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:13:00.631271Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000011902 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7b8c1d594d2da0f03454f72dc73f32f4bec301b07b17893d89d2094ccef04075 |
|---|---|
| Markdown | 071596b17fc7267c719b49b9761bcd7f7bcad51f268a088e688465821dd5192e |
| Publication page | d8da2091f6d31b8a817acaafb3bc9cd5987ef38b7079d2ac9cf642cdafb0f545 |
| Manifest | edb0acd1371f68dd29db90bfb8790584b2b4cb99bda1df9746bf8302691b1e8c |
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 | NekGrM9vgu1mErmLYFd2Q87G3eSVb/cLPNDcFcOUubKR6GlBK5DGs0ZlJ8c2IleiOOePzQpA9m5Uj/2T+nqsDw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
|---|
Independent retrieval
| 2026-10-29T04:41:53.367174Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011902observed d8da2091f6d31b8a817acaafb3bc9cd5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-29T04:41:53.294639Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011902/manifest.jsonobserved edb0acd1371f68dd29db90bfb8790584...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T04:41:53.221805Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011902/publication.mdobserved 071596b17fc7267c719b49b9761bcd7f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T04:41:53.143213Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011902/publication.txtobserved 7b8c1d594d2da0f03454f72dc73f32f4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T16:41:10.141713Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011902observed d8da2091f6d31b8a817acaafb3bc9cd5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T16:41:10.092200Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011902/manifest.jsonobserved edb0acd1371f68dd29db90bfb8790584...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T16:41:10.040321Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011902/publication.mdobserved 071596b17fc7267c719b49b9761bcd7f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T16:41:09.944574Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011902/publication.txtobserved 7b8c1d594d2da0f03454f72dc73f32f4...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 |
|---|