OT-2026-000001556
Publication integrity record
Gripper device for robot arm
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-2026-000001556) never changes.
Identity and time
| Publication number | OT-2026-000001556 · never reused |
|---|---|
| Internal UUID | 01a0a676-ce8d-72fe-9041-0fb7d29dfd69 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:06:39.117489Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001556 |
| Status | PUBLIC |
Content hashes
| Canonical text | acc2f8f86e16e7c5f17562fe86300312c1149613059642a4ce3e825f751d0f7c |
|---|---|
| Markdown | ecb0f18bf5ec55039fe1fc9e2e822c371d92262d0a3d04e214498c6d7daa3fc1 |
| Publication page | f87715c1274cc972763fd9e4fa983735d7f361cc57584ed7d2fc605995aeaf08 |
| Manifest | 54010fcc46a596c23e73dedaaa00a81c1270877645ca859f50ab12286c096080 |
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 | 6fx8Quk4Hi07IhAZuOXVsNuxDvqzSAMnzxI0+YPzjyxEqN933+VUwmp08ZpWBqXovfNa6o1g9HEdgkl4uXFDAg== |
| 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
| 2026-09-19T04:23:47.628416Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001556observed f87715c1274cc972763fd9e4fa983735...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-19T04:23:47.611831Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001556/manifest.jsonobserved 54010fcc46a596c23e73dedaaa00a81c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-19T04:23:47.597271Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001556/publication.mdobserved ecb0f18bf5ec55039fe1fc9e2e822c37...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-19T04:23:47.513884Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001556/publication.txtobserved acc2f8f86e16e7c5f17562fe86300312...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:00:30.442292Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001556observed f87715c1274cc972763fd9e4fa983735...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:00:30.409383Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001556/manifest.jsonobserved 54010fcc46a596c23e73dedaaa00a81c...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:00:30.396900Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001556/publication.txtobserved acc2f8f86e16e7c5f17562fe86300312...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 |
|---|