OT-2026-000000013
Publication integrity record
Redundant Locking Detection for Robotic Tool Changer Coupling
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-2026-000000013) never changes.
Identity and time
| Publication number | OT-2026-000000013 · never reused |
|---|---|
| Internal UUID | 01a0a671-d92f-759b-91b9-b7957ed7fdc6 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:01:14.162218Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000013 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7c96911dd5a3e1e8415b7c233d025c6614b05aff200c6408685c9fbcb1498617 |
|---|---|
| Markdown | 2c5abb4f3ece5d7eadd733b71a7f479b553f386d80a0a62f92b70f802d192e3c |
| Publication page | 9b0405b5d6a398a57e83ac9f23d3a83bd06190ed2d40acfaf118acf9011a48aa |
| Manifest | 04a7e5c6e7a20f89d634a8df4feaa516c947a455d36aa87dbab03bb6dd2f52a1 |
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 | oAq4KCVu0nv9ex45Ewcpb7gDuycKnlwvZKSSWS4hIsqaqmGkvzl0PsGWlpyDEnfLkmbjudl3p99BaqEwjtXmDQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:07:03Z batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof root 6369baadb1a246009d149835804d20ba... |
|---|
Independent retrieval
| 2026-09-28T04:23:25.786516Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000013observed 9b0405b5d6a398a57e83ac9f23d3a83b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-28T04:23:25.775065Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000013/manifest.jsonobserved 04a7e5c6e7a20f89d634a8df4feaa516...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-28T04:23:25.759800Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000013/publication.mdobserved 2c5abb4f3ece5d7eadd733b71a7f479b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-28T04:23:25.630783Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000013/publication.txtobserved 7c96911dd5a3e1e8415b7c233d025c66...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:44.288701Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000013observed 9b0405b5d6a398a57e83ac9f23d3a83b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:44.161240Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000013/manifest.jsonobserved 04a7e5c6e7a20f89d634a8df4feaa516...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:44.010988Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000013/publication.mdobserved 2c5abb4f3ece5d7eadd733b71a7f479b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:43.891834Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000013/publication.txtobserved 7c96911dd5a3e1e8415b7c233d025c66...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 |
|---|