OpenTechnical

OT-2026-000027139

Publication integrity record

Foam pad vacuum gripper, three zone face, two stage ejector, 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-2026-000027139) never changes.

Identity and time

Publication numberOT-2026-000027139 · never reused
Internal UUID01a0ae72-3454-7c17-8d97-704072011b23 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027139
StatusPUBLIC

Content hashes

Canonical text6e25cdea19e113187dad756e5d49b1b5dd34d5082efcba289ace98bd83c438b7
Markdown3abcbb1b3385e1bcb95063bb9e9ff22938b5fb644b1b195a6124ba25485f0f94
PDF
Publication pagec0d5d4e48c5b710fd80f8a36df13e56338ce6a810153616f952225010faebf5b
Manifestc5529cbfffd7e0e91b4c421c746e3908f40dd95656f8d607b8fd5586cf37838d

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
SignatureQ3uUY81AjuTQA2VjLGPEau3wGpOA+GvhX1SvK7b7aqtdAvKF8F3WPJ8EwG3bp/424G0My0eSRuhBmFXxRgxGBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T11:43:54.953651ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027139
observed c0d5d4e48c5b710fd80f8a36df13e563...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:54.938084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027139/manifest.json
observed c5529cbfffd7e0e91b4c421c746e3908...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:54.920720ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027139/publication.md
observed 3abcbb1b3385e1bcb95063bb9e9ff229...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:54.903894ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027139/publication.txt
observed 6e25cdea19e113187dad756e5d49b1b5...
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.