OpenTechnical

OT-2026-000013255

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, single stage ejector, 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-2026-000013255) never changes.

Identity and time

Publication numberOT-2026-000013255 · never reused
Internal UUID01a0ae6d-6fc9-7395-8984-66f29cfc3f19 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013255
StatusPUBLIC

Content hashes

Canonical textfdca17a898d883015d22787aee2367fb9bf30cd14ca54fb261757823e568f5e0
Markdown6d986e24075beeb45ce5de2dab8562705a97d7bf65960294e579f6bda3981964
PDF
Publication page8c4bec02c7425a37b03fcc782c7f6a310bcf3b81ecea9014019b45aa69d2e0c4
Manifest50c361e16ce88515a66df658be989ae7b46419ab4d737d07622b5d8b31f259a9

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
SignatureEs+hxiL70/bkYWHaTGuj8DIBDO35ioBLiVfqTzKfd9M9L2EpMy8n2NZGA9f5HaPuPpXwQk6ikVKMCTCXUQIDAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:09:39.713325ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013255
observed 8c4bec02c7425a37b03fcc782c7f6a31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:39.693802ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013255/manifest.json
observed 50c361e16ce88515a66df658be989ae7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:39.674105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013255/publication.md
observed 6d986e24075beeb45ce5de2dab856270...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:39.653617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013255/publication.txt
observed fdca17a898d883015d22787aee2367fb...
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.