OpenTechnical

OT-2026-000053683

Publication integrity record

Four cup vacuum gripper, four zone face, pump fed, 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-2026-000053683) never changes.

Identity and time

Publication numberOT-2026-000053683 · never reused
Internal UUID01a0ae85-0a96-71f7-b507-1a2ffcce6c78 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:09.762364Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000053683
StatusPUBLIC

Content hashes

Canonical textae26ae207d89f9ab1b0d2c6b567733a1cd9100f9da00895990d6d65466c1de1d
Markdown0b2a516979831481c3e4c6a66e4c22be474bb1b0f70b3d4a1f0052fa53c6ca4d
PDF
Publication page6c0f856ca7ba02f51bb0b279f66294685e79fbc53350cb3d6c38ee6d98e25fe1
Manifest9649b64cfdad7a9045d16c0cd16e06f9e95206b19fa15fe195f48632f19f40d3

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
Signature37RZJuaows96IlfwTtGvfhI624Owv2v1dXSY2SbDtdRBO+/nqb01xzXRFCaQ1KBsD96kw1kF3LTRtyGTcEujAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:55:34.827818ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053683
observed 6c0f856ca7ba02f51bb0b279f6629468...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:34.809780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053683/manifest.json
observed 9649b64cfdad7a9045d16c0cd16e06f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:34.792014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053683/publication.md
observed 0b2a516979831481c3e4c6a66e4c22be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:34.774897ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053683/publication.txt
observed ae26ae207d89f9ab1b0d2c6b567733a1...
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.