OpenTechnical

OT-2026-000071446

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, vented before 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-2026-000071446) never changes.

Identity and time

Publication numberOT-2026-000071446 · never reused
Internal UUID01a0ae91-e0ed-7a77-908c-7d83533d7194 · 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-2026-000071446
StatusPUBLIC

Content hashes

Canonical text4659c0b5cb6de4f1f72f30fe3e734b1f0446ee565e18f113b1001ead0006ca29
Markdownb963e52ec88735ff71fafd27f2b0ed69337a3ebd2b66c870db782a656d0c72da
PDF
Publication page8b069a3e1f89a1b8cc2af48151653ba8a156d38f30f6093ab45457419aabc819
Manifest6f3b54eb3c65489ecdd2509056c7153d70a88bbdd6401d86736b0d0dee9c290a

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
SignatureE6F/NDUGo54o3xWimvPGM/rVjG7g3Fobj43mYmA7oeCuRdItlXlNgSWB4cMgttcGmkcDRpn/uNSiiKYJCsN+DA==
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

2026-09-17T10:25:05.198837ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071446
observed 8b069a3e1f89a1b8cc2af48151653ba8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:05.180207ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071446/manifest.json
observed 6f3b54eb3c65489ecdd2509056c7153d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:05.162519ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071446/publication.md
observed b963e52ec88735ff71fafd27f2b0ed69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:05.144421ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071446/publication.txt
observed 4659c0b5cb6de4f1f72f30fe3e734b1f...
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.