OpenTechnical

OT-2026-000054280

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, 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-2026-000054280) never changes.

Identity and time

Publication numberOT-2026-000054280 · never reused
Internal UUID01a0ae85-b3a9-700d-b439-de9af4148ec0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:53.019909Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000054280
StatusPUBLIC

Content hashes

Canonical text598f71ea0f3f27861690690258759beba8a8853fd579c32e44cdfb53c39b8a74
Markdown3b9a18707ef6463612ebbcb365e07b0b01020ab15645097f3d2ce1d86b0b4579
PDF
Publication pageedc0565ded2ffe41218274f9863ac6860fd418721e7c949386f3801ce0e86317
Manifest747f4c6d99b09320fa82dbf65e03db324a4995e00fd7b3a7f8a458f41d082439

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
Signature+UDzjm7yiVC6IzXcoWmPA5GCuaift0rd09MQUpD5pRsZsMfWVilR0lIuiQr3QGhUGB5R7bQkcMMUfN4s+fN3Bg==
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

2026-10-11T04:23:29.682290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054280
observed edc0565ded2ffe41218274f9863ac686...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-11T04:23:29.665010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054280/manifest.json
observed 747f4c6d99b09320fa82dbf65e03db32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-11T04:23:29.637733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054280/publication.md
observed 3b9a18707ef6463612ebbcb365e07b0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-11T04:23:29.615293ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054280/publication.txt
observed 598f71ea0f3f27861690690258759beb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-05T04:41:50.920128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054280
observed edc0565ded2ffe41218274f9863ac686...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T04:41:50.867877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054280/manifest.json
observed 747f4c6d99b09320fa82dbf65e03db32...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T04:41:50.818293ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054280/publication.md
observed 3b9a18707ef6463612ebbcb365e07b0b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T04:41:50.759445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054280/publication.txt
observed 598f71ea0f3f27861690690258759beb...
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 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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent