OpenTechnical

OT-2026-000018875

Publication integrity record

Foam pad vacuum gripper, four zone face, six outlet manifold, three 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-2026-000018875) never changes.

Identity and time

Publication numberOT-2026-000018875 · never reused
Internal UUID01a0ae6e-d522-7181-b926-f070f4a5065d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018875
StatusPUBLIC

Content hashes

Canonical text1e1a15d6e5a1a6fdd0e89668bafe612407a948bc9941626a63f54418a20b6440
Markdown751281cd98f8acebd0853999b50e0b2053fd877655d81c9786fd5b41c2b63f0f
PDF
Publication page993e4ffd087dcb6abb9a49a3ff1096fb3b9919c875619ae5438b88c907ce4e9e
Manifest7690c4e3c4a6887c3ff14f5b111011899fe365822ecc37f1c1160fefe0ea24e0

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
Signaturep8PoqhWo2SIWw1SB9Wmx1nohue6y+ptOzHFsVZ8X7MSzngp/HF2BINdAEpX5gKWssUPsvDKDlfCY/gwGC4qRDQ==
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

2026-09-17T11:59:31.409401ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018875
observed 993e4ffd087dcb6abb9a49a3ff1096fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:31.390325ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018875/manifest.json
observed 7690c4e3c4a6887c3ff14f5b11101189...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:31.372978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018875/publication.md
observed 751281cd98f8acebd0853999b50e0b20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:31.355017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018875/publication.txt
observed 1e1a15d6e5a1a6fdd0e89668bafe6124...
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

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