OpenTechnical

OT-2026-000070991

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump fed, supply line pressure sensor, pulsed 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-2026-000070991) never changes.

Identity and time

Publication numberOT-2026-000070991 · never reused
Internal UUID01a0ae91-8c2e-7987-b235-b535ba1affe6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:49.344646Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070991
StatusPUBLIC

Content hashes

Canonical text4898e19852b4e823b57d177fcdef8916bef0db1df3095ae541ef4c996d9edce4
Markdowndc3ea8eee2ead96629d72167363b5d516051604866056c621d1710569ba97a94
PDF
Publication page26bf695bc080ad0e7741a8dcc20831d5e0eb68f4331c69a1e99bfd1cfae3d1d1
Manifest7130bbdaedcff69f1afb8fcb99e32a16f30baf467cc56592ccfacefaee0ca76d

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
Signature25ugjtcL1bU2lZgAcoe7X3cy0aM/7JphiSrp8Jx+uMztatFpPvGJfSBSCgOS0VNFz1E0NMD9js+mWMpMangRBQ==
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

2026-09-17T10:25:50.123169ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070991
observed 26bf695bc080ad0e7741a8dcc20831d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:50.107791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070991/manifest.json
observed 7130bbdaedcff69f1afb8fcb99e32a16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:50.090786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070991/publication.md
observed dc3ea8eee2ead96629d72167363b5d51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:50.073771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070991/publication.txt
observed 4898e19852b4e823b57d177fcdef8916...
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.