OpenTechnical

OT-2026-000081234

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, vented 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-2026-000081234) never changes.

Identity and time

Publication numberOT-2026-000081234 · never reused
Internal UUID01a0ae96-f373-7f7b-b361-6218fe53b5aa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081234
StatusPUBLIC

Content hashes

Canonical text168c84f1b490a75edee80c81f8dad2c906363e680273886ee12f875b46926603
Markdown79ee711885692dc8118dbe4e7102125a53cb3114471c4717e2201b730a3890d4
PDF
Publication page0f2544d313dbcc7719e660a98d94876fa493c21269e7a3dc568593aceccab835
Manifest07942bcc237f21757e3a38866a970b5570cb181c5addc99d8903ac1ab3f9d931

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureiNyAENrm35oXnkeM1ys8pkAp6NqsKWCxez8PvC/l/9XIHSfTzvgynSN6s5zOeEDv+5AzGjfWT/kvh410fLr6BA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:01:19.285408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081234
observed 0f2544d313dbcc7719e660a98d94876f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:19.265822ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081234/manifest.json
observed 07942bcc237f21757e3a38866a970b55...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:19.245835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081234/publication.md
observed 79ee711885692dc8118dbe4e7102125a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:19.228449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081234/publication.txt
observed 168c84f1b490a75edee80c81f8dad2c9...
fetched by instance-3.rotem.ai from 34.69.0.72, 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 archivePending 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

Custody packagePending Custody packages are produced weekly.