OpenTechnical

OT-2026-000043198

Publication integrity record

Foam pad vacuum gripper, three stage ejector, sustained blow-off after 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-2026-000043198) never changes.

Identity and time

Publication numberOT-2026-000043198 · never reused
Internal UUID01a0ae7b-327c-742a-a02d-04b563874c0f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043198
StatusPUBLIC

Content hashes

Canonical text0f351aa744e002ccbe077f2294af4a56f705db0a401a2bc10ccb96270c6ccdfc
Markdown74b260d55692b1a983d2be92566629459d949a329fd0dd9ce56f66b39958b813
PDF
Publication page4cbdef1bc73daa1e85d3718a7dc01b3680f541dad3402f03fe5b266ba5fd0cc0
Manifest1b4ca03c6f33da7b484db0e2b8f6710e472e5270ebce68b1cd910aca78f5d983

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
SignatureUbdrmrRJ8WUMT3hQ4Iq255485rfpv8M3HVoStnqKS7CdPpVgoCOszF9XYtsNC+UxzRygK0XFPazVqifmii7SCg==
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

2026-09-17T11:13:39.343381ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043198
observed 4cbdef1bc73daa1e85d3718a7dc01b36...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:39.324873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043198/manifest.json
observed 1b4ca03c6f33da7b484db0e2b8f6710e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:39.305394ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043198/publication.md
observed 74b260d55692b1a983d2be9256662945...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:39.285572ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043198/publication.txt
observed 0f351aa744e002ccbe077f2294af4a56...
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.