OpenTechnical

OT-2026-000006554

Publication integrity record

Bellows cup vacuum gripper, two zone face, plant vacuum fed

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-2026-000006554) never changes.

Identity and time

Publication numberOT-2026-000006554 · never reused
Internal UUID01a0a95f-3e1b-7554-b4f7-a39883253f07 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:39:46.462664Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006554
StatusPUBLIC

Content hashes

Canonical text2c01a1349c23aaef85d16734ec69826978d46253c3b5181edf5875649f8617a6
Markdown9434df43386cf3d67ecc1a255813f8e03dd01fbc4a42df5f8fdf741905e2ae09
PDF
Publication page58af605055f67176adc26d6d7cbe213b09cb378d09747dd82b226bdc688daa1d
Manifestddbebf12b086f3a42a83a10012ca04f9d44628121b1540e82a735d9e42d6dfdb

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
Signature7rMBgGs0NvockCC751+T8XNJI7ZEV2j8p1SsKlIpU0p8DlYN64rE6iI0x2Ys7Az2qt+A/zPUoyy2D7M6WrbfBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:03.691613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006554
observed 58af605055f67176adc26d6d7cbe213b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:03.670402ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006554/manifest.json
observed ddbebf12b086f3a42a83a10012ca04f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:03.656100ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006554/publication.md
observed 9434df43386cf3d67ecc1a255813f8e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:03.641779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006554/publication.txt
observed 2c01a1349c23aaef85d16734ec698269...
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.