OpenTechnical

OT-2026-000089518

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, single stage ejector, manifold pressure sensor, sustained 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-2026-000089518) never changes.

Identity and time

Publication numberOT-2026-000089518 · never reused
Internal UUID01a0ae9b-db02-7307-9ace-31429a3a9616 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089518
StatusPUBLIC

Content hashes

Canonical textbc0d527a8d595a5e45d8c485f8d94508a62a275efce668d5a70f14535a22e213
Markdown0fe4b27cd931570a64d1d3a7a10be1e83f3f33be6b58220d4b0af0eac02ba940
PDF
Publication pageec140d22ec3a6928e7ce20db2bae4b825572dd6446c0ac2228db4d588d57550d
Manifestd2ced28128ca3457e035f173886844428f402b3f8e1664a09c1c22f974655616

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
SignatureoruW+XebX3DLTsqDYOcf1MPe4XLtgjcmYDan4QXBHVoGArPH1kWbXe2rbuInDZxewy5aKK+gxB+s8DheJ6N1Cw==
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

2026-09-17T09:47:40.515252ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089518
observed ec140d22ec3a6928e7ce20db2bae4b82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:40.498651ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089518/manifest.json
observed d2ced28128ca3457e035f17388684442...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:40.481643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089518/publication.md
observed 0fe4b27cd931570a64d1d3a7a10be1e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:40.464577ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089518/publication.txt
observed bc0d527a8d595a5e45d8c485f8d94508...
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.