OpenTechnical

OT-2026-000079547

Publication integrity record

Three cup vacuum gripper, three zone face, two 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-2026-000079547) never changes.

Identity and time

Publication numberOT-2026-000079547 · never reused
Internal UUID01a0ae96-0b92-7a94-8e5d-87b5e5cfd140 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:44.101434Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079547
StatusPUBLIC

Content hashes

Canonical textb4ef0d8b7b1f48a5a7e22caab5e2d0e95bae80de4a57c7c5813384722ef2569a
Markdownd6023a86da9eb98f4a818ba1feea7a8e47f6a9cc692173a670bf0d34a1e5beb3
PDF
Publication pagebdc85c192b66325375e5046d37b23b5d6a1dea42907ed9bf346c21046f89c636
Manifest487bd0fc015f38e39d28701afdc628639a18ddc42105f034aedbbf32a9e57ee5

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
Signaturebv5t3gBJV/K6QabnRFa1+qMrgjNMJ/kZb3gCQpvwn2aUIiaHDOPwa7ic8Hbbdh2z3R23or/21q8/s3LBsLQnCg==
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

2026-09-17T10:05:11.750658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079547
observed bdc85c192b66325375e5046d37b23b5d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:11.733204ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079547/manifest.json
observed 487bd0fc015f38e39d28701afdc62863...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:11.714606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079547/publication.md
observed d6023a86da9eb98f4a818ba1feea7a8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:11.685244ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079547/publication.txt
observed b4ef0d8b7b1f48a5a7e22caab5e2d0e9...
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.