OpenTechnical

OT-2026-000071216

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, single stage ejector, vented 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-2026-000071216) never changes.

Identity and time

Publication numberOT-2026-000071216 · never reused
Internal UUID01a0ae91-e0ec-7225-9d75-98b4516bbfc8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071216
StatusPUBLIC

Content hashes

Canonical text60857dc5869c4039909c310e744d732d63d9296420dbf2b5f4abaea1ac646e5c
Markdown647992110fb22306203c7c10dfef609a58a214dd0aba2d76ea3ae215f08806b4
PDF
Publication page0bc28cd74b174a2d366b6cd4131ee9c9e7d1ddefe4ca519213716a915613bfc4
Manifest36335ce205d3eaedd154efcb237a8ae6e536fcd93fdffdd9e019381c72bb178d

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
Signature4b6Hwa9gIgbsLuxUQKLYkmSb4RBqaZHtxnKI5pEr/eHWfjrOd6KBUSAAZIlHjIRg2s5/027AD0Vw3rA4EVLdBw==
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

2026-09-17T10:24:44.974434ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071216
observed 0bc28cd74b174a2d366b6cd4131ee9c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:44.957816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071216/manifest.json
observed 36335ce205d3eaedd154efcb237a8ae6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:44.941174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071216/publication.md
observed 647992110fb22306203c7c10dfef609a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:44.922995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071216/publication.txt
observed 60857dc5869c4039909c310e744d732d...
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.