OpenTechnical

OT-2026-000056132

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, sustained blow-off 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-2026-000056132) never changes.

Identity and time

Publication numberOT-2026-000056132 · never reused
Internal UUID01a0ae87-0a4b-796d-a948-48e9ffa0b18f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056132
StatusPUBLIC

Content hashes

Canonical text0b7bed8ebf783c479e2819f6320222637c2550b60aa687e22f9c549b0ec34d07
Markdown43b414fb570435f018f3b4abbcc0e51ebd1ad78a974c78beb79317b7016fa37a
PDF
Publication paged25f7702e7004f28cc9044364bb302e1334f47d8bd4e2327ef7cc1eb40a5558b
Manifestfc070bd00cad66e28b03632ac02e3276388a600c09bf4d436de38026c5951ed5

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
SignatureLtScsKvyZQyw67MtiuT7ZrlU1pHNVeLJXkyOFx3iBKTZ6xqEvsZ7J+g+oHs8geiXHndXXu9b9L2kg1j8jnGkCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:40.831303ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056132
observed d25f7702e7004f28cc9044364bb302e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:40.814261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056132/manifest.json
observed fc070bd00cad66e28b03632ac02e3276...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:40.797857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056132/publication.md
observed 43b414fb570435f018f3b4abbcc0e51e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:40.778301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056132/publication.txt
observed 0b7bed8ebf783c479e2819f632022263...
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.