OpenTechnical

OT-2026-000081665

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, 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-2026-000081665) never changes.

Identity and time

Publication numberOT-2026-000081665 · never reused
Internal UUID01a0ae97-0f73-7f0e-ab7d-b2a3257078f5 · 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-2026-000081665
StatusPUBLIC

Content hashes

Canonical text02ee8385fbe18716f846816e88e6ab76e2cf560c09194155131a706a7d39fcc2
Markdownb1be72c829b205c95e46491ab4ea3a9bea372903c0222bc75acaf2eb7b399bd4
PDF
Publication page6fc422c7f2ce29f3329e7b128becdb6df0bcc6163f4796652200d171012f5451
Manifest6884d083503692e1ea296077ecccf80868fcb6511d60ee82ac06d5e15a5b1821

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
SignaturezChOzSgL+T0XYHF5qpqRR6wr35ESlFtOkTfFDXJSxMIy/atOSe3KR77gVOQPh1sHNG60TR5tOvSZbEa8fSSSAg==
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

2026-09-17T09:59:43.442079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081665
observed 6fc422c7f2ce29f3329e7b128becdb6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:43.423227ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081665/manifest.json
observed 6884d083503692e1ea296077ecccf808...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:43.405860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081665/publication.md
observed b1be72c829b205c95e46491ab4ea3a9b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:43.387620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081665/publication.txt
observed 02ee8385fbe18716f846816e88e6ab76...
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.