OpenTechnical

OT-2026-000081605

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, single stage ejector, 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-2026-000081605) never changes.

Identity and time

Publication numberOT-2026-000081605 · never reused
Internal UUID01a0ae97-0f72-7937-995d-fed5c56523bb · 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-2026-000081605
StatusPUBLIC

Content hashes

Canonical text68e18674e49cc71ad43c1f15a79160264e043a7dc8e03a802bdd6d154869d6a1
Markdown2a4a29d910fedfaca6f03d0cc5790ea20674fd1921ea588851581c412b37df64
PDF
Publication page4f9518a153ab7b544b9f4bf89f01e74eea7da3a61e04b46e7f2298ae29c588c6
Manifest563abcaadf0849c783cf98c822a3288cf1f4dbc37f4bbb3a3c8eba5357139dba

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
Signaturev7JAr/CNa+QDMbSS3UfvsxlISsBT+7YeKoA+owZNhbqEvXMFw0tK+KgWU4L+iLchhUAxth/PyrAj5TWscpPgCg==
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

2026-09-17T09:59:38.634708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081605
observed 4f9518a153ab7b544b9f4bf89f01e74e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:38.616791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081605/manifest.json
observed 563abcaadf0849c783cf98c822a3288c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:38.600351ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081605/publication.md
observed 2a4a29d910fedfaca6f03d0cc5790ea2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:38.582449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081605/publication.txt
observed 68e18674e49cc71ad43c1f15a7916026...
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.