OpenTechnical

OT-2026-000100223

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, plant vacuum fed, pressure sensor per zone, sustained 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-2026-000100223) never changes.

Identity and time

Publication numberOT-2026-000100223 · never reused
Internal UUID01a0aea3-3053-7cd6-9302-30fdd847ea55 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:05.469356Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100223
StatusPUBLIC

Content hashes

Canonical text79615758278d4082dc4cda2e8fd09f51e66dd97a16800f92e617237217c70970
Markdown3fb96f49f7eb9cc37b61108ab05933e67c97566c3c25486822093e5c3472cb30
PDF
Publication page0372c767c6d1cca63b43a26e66c3a15bd2401dd951416ade1e1bb189e7b5399f
Manifest379663eef8e1348db2626d5ddf69e9230e1c191924eecef6837abfa4b0ea59f3

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
SignaturebOe6cFxkvCIkU2pjzUpFuO2A4ePpLXagmaJ7uGVYISUMkZUC8nX1v/E3lenDBangVGBwCKq7JDQU1iqorqVIAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:28:00.899591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100223
observed 0372c767c6d1cca63b43a26e66c3a15b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:28:00.878733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100223/manifest.json
observed 379663eef8e1348db2626d5ddf69e923...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:28:00.850812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100223/publication.md
observed 3fb96f49f7eb9cc37b61108ab05933e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:28:00.826393ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100223/publication.txt
observed 79615758278d4082dc4cda2e8fd09f51...
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.