OT-2026-000054220
Publication integrity record
Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, supply line pressure sensor, pulsed blow-off 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-2026-000054220) never changes.
Identity and time
| Publication number | OT-2026-000054220 · never reused |
|---|---|
| Internal UUID | 01a0ae85-b3a9-7f1a-bbaf-8766495a4b61 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:39:53.019909Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000054220 |
| Status | PUBLIC |
Content hashes
| Canonical text | d7d9ade0f2bacbbcaf0196be459dcb5e288b537344882e2775e4d3c54d5e07b9 |
|---|---|
| Markdown | a41c868e6c94bb9f0fa58f1793d80ea21d3d85917c775a7ad8252f17e739d32d |
| Publication page | fe103d213c63f28a2b1863ed3bba84d0fa8e85ce8a153311d2ccf7fa5cddd84e |
| Manifest | 0df5357f8e002b1fde106b6655621749796e468aee98ad5a1adb04969628e07a |
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 | hfo/4wTx7WcNwDOuZMPVb2ymUq5MFlH4IrRft+V5MMkfkdUz5VNeoTGYDlcuDZ5kicrPVz1X/NvMgd6s7wHbDw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:47:04Z batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof root 954df3475fbcfbe27467725cfb2ec919... |
|---|---|
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
Independent retrieval
| 2026-11-05T12:41:23.943634Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054220observed fe103d213c63f28a2b1863ed3bba84d0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 136.114.173.71 |
|---|---|
| 2026-11-05T12:41:23.892516Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054220/manifest.jsonobserved 0df5357f8e002b1fde106b6655621749...fetched by grabo-systems from 34.44.131.203, which resolved the name to 136.114.173.71 |
| 2026-11-05T12:41:23.839794Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054220/publication.mdobserved a41c868e6c94bb9f0fa58f1793d80ea2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 136.114.173.71 |
| 2026-11-05T12:41:23.767027Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054220/publication.txtobserved d7d9ade0f2bacbbcaf0196be459dcb5e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 136.114.173.71 |
| 2026-10-05T08:41:46.914761Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054220observed fe103d213c63f28a2b1863ed3bba84d0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-05T08:41:46.865432Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054220/manifest.jsonobserved 0df5357f8e002b1fde106b6655621749...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-05T08:41:46.819410Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054220/publication.mdobserved a41c868e6c94bb9f0fa58f1793d80ea2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-05T08:41:46.738164Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054220/publication.txtobserved d7d9ade0f2bacbbcaf0196be459dcb5e...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 |
|---|