OpenTechnical

OT-2026-000081498

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, single stage ejector, supply line pressure sensor, vented after 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-2026-000081498) never changes.

Identity and time

Publication numberOT-2026-000081498 · never reused
Internal UUID01a0ae97-0f70-7f2f-b548-bb76f0f81e50 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081498
StatusPUBLIC

Content hashes

Canonical text6677dabb0f8a3503bc5c9dd37eef25b4bbc214ed29be8ca7baee59d38ef0031e
Markdown957e170fdc5a7be8de40385f47c060710b4c275e7b1187e21664b6d449e8086b
PDF
Publication page0fca6308225ce7bab92660fe8a7402957cdce43716462a9e27cc1177144c3c3f
Manifest754c0f583fd58da8b256a061ab0cac8ec41e106f287974a3da0e2478969729b6

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
Signature9W58fDvpw+e/tTLlZ9B3TFnQMwGXBOPTfmitaLOzD93yJ4h4U13J7EuBCELN46L8+vnnYnvqY79Hr/OQpqakBQ==
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

2026-09-17T09:59:30.642539ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081498
observed 0fca6308225ce7bab92660fe8a740295...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:30.626474ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081498/manifest.json
observed 754c0f583fd58da8b256a061ab0cac8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:30.610485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081498/publication.md
observed 957e170fdc5a7be8de40385f47c06071...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:30.593171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081498/publication.txt
observed 6677dabb0f8a3503bc5c9dd37eef25b4...
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