OpenTechnical

OT-2026-000091836

Publication integrity record

Foam pad vacuum gripper, four zone face, four outlet manifold, single stage ejector, pressure sensor per zone, sustained blow-off before set-down

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-2026-000091836) never changes.

Identity and time

Publication numberOT-2026-000091836 · never reused
Internal UUID01a0ae9d-43ba-7d8c-a992-f8fe7b6dfa59 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091836
StatusPUBLIC

Content hashes

Canonical text112da9ebddd25e69ae560d589af0e18650fcf9be093c05b9a83eedf9deb75796
Markdown80f0de7b6f6d4db484f09374d7cea6798b4a3dab565d9f206412ce8e31239068
PDF
Publication page20165622143a0ec2354d74af316578ef12fd98c36eccd70cbee29246d68996a8
Manifest578eeb2a67dd35be76a36742478a0b4ba24fa341defb3e578261ad7db16c0c5a

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
SignatureYWJP5XjahaEZAmbcgLOhhgtLSD2AgXD4pY+kwa3DMVRLRxCs2YdbK2mjAtqqszqPkhYVXR02EQqsMje0Y13pCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-10-25T20:41:20.900614ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091836
observed 20165622143a0ec2354d74af316578ef...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-25T20:41:20.816771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091836/manifest.json
observed 578eeb2a67dd35be76a36742478a0b4b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-25T20:41:20.712796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091836/publication.md
observed 80f0de7b6f6d4db484f09374d7cea679...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-25T20:41:20.626117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091836/publication.txt
observed 112da9ebddd25e69ae560d589af0e186...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-27T16:41:58.711902ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091836
observed 20165622143a0ec2354d74af316578ef...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-27T16:41:58.631457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091836/manifest.json
observed 578eeb2a67dd35be76a36742478a0b4b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-27T16:41:58.534889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091836/publication.md
observed 80f0de7b6f6d4db484f09374d7cea679...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-27T16:41:58.409536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091836/publication.txt
observed 112da9ebddd25e69ae560d589af0e186...
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