OT-2026-000071421
Publication integrity record
Three bellows cup vacuum gripper, three zone face, common isolation valve, single stage ejector, supply line pressure sensor, pulsed blow-off before 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-2026-000071421) never changes.
Identity and time
| Publication number | OT-2026-000071421 · never reused |
|---|---|
| Internal UUID | 01a0ae91-e0ed-7915-a658-ca37053c120a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:53:11.039722Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000071421 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7c4b518c65ec9e8e0ad3a71da4d80b512575807220da281fa478ffea00d2bd63 |
|---|---|
| Markdown | 6683604e31052086fbabb9b306d5e3fbba7768ce6fa0182960c5f4a0b6186049 |
| Publication page | 6a55f894a5561b1cf237258ff2007407baa3f0b256d8a47e7829cad40b63b60f |
| Manifest | dea4b96e31743bf3b85f656932379ebecac4d132d6f06e01a742e282e9724ee2 |
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 | ELAby1nODR68iNy/fZFbmyoDYDEqvVgtngjd0UzOWaUDE1Syh6n2wRFncFAUNz35K5SIjUhFpWNUO7fJgRh6Bw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
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Independent retrieval
| 2026-10-07T04:41:22.335141Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000071421observed 6a55f894a5561b1cf237258ff2007407...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-07T04:41:22.268068Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000071421/manifest.jsonobserved dea4b96e31743bf3b85f656932379ebe...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T04:41:22.214625Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000071421/publication.mdobserved 6683604e31052086fbabb9b306d5e3fb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T04:41:22.091812Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000071421/publication.txtobserved 7c4b518c65ec9e8e0ad3a71da4d80b51...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T00:41:48.744431Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000071421observed 6a55f894a5561b1cf237258ff2007407...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T00:41:48.673110Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000071421/manifest.jsonobserved dea4b96e31743bf3b85f656932379ebe...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T00:41:48.591788Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000071421/publication.mdobserved 6683604e31052086fbabb9b306d5e3fb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T00:41:48.528269Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000071421/publication.txtobserved 7c4b518c65ec9e8e0ad3a71da4d80b51...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 |
|---|