OpenTechnical

OT-2026-000076305

Publication integrity record

Four cup vacuum gripper, four zone face, plant vacuum fed, pressure sensor per zone, 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-2026-000076305) never changes.

Identity and time

Publication numberOT-2026-000076305 · never reused
Internal UUID01a0ae94-6a70-7d96-bcc1-62ddcc105f8a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076305
StatusPUBLIC

Content hashes

Canonical text4f8f17313731ffbd1a99c3fa2c53ffe63ca6771900a0ac31fe978fe6005eb245
Markdown793bedbd2fa367c1251d91474af1db65ece03c6d99de802b4ee4c66b8a4adf69
PDF
Publication page57e7b07d1df9351ecb061ed9913113a1ae56c2953910d2b9259deea3af6450e3
Manifest3dd3338b5aedcb4106e3da1c0a2998facf745bbf08a4027477be5d3753ed87f8

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
SignatureMyeUaQnYH46VXwBNt3xioCVlubMrorWz9swAhl78oHg5KFk9vdd1PR79fEibSCPkr3mOUQUWalFOy+vrtpkODQ==
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

2026-09-17T10:12:08.757374ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076305
observed 57e7b07d1df9351ecb061ed9913113a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:08.738507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076305/manifest.json
observed 3dd3338b5aedcb4106e3da1c0a2998fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:08.718341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076305/publication.md
observed 793bedbd2fa367c1251d91474af1db65...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:08.695979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076305/publication.txt
observed 4f8f17313731ffbd1a99c3fa2c53ffe6...
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.