OpenTechnical

OT-2026-000049405

Publication integrity record

Three cup vacuum gripper, three outlet manifold, three stage ejector, manifold pressure sensor, sustained blow-off after 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-2026-000049405) never changes.

Identity and time

Publication numberOT-2026-000049405 · never reused
Internal UUID01a0ae81-8f7b-70fb-920e-e7187285a2d1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049405
StatusPUBLIC

Content hashes

Canonical text058f034398f2a6d5a559c790b9e4caf377c6e460b11109f51b23978a7b9243bb
Markdowne6ec2a65887f78e3cb456eba400dd6dcb4b0ac16500e5bcb094ce0ec6a814ea8
PDF
Publication page6dda8c8e57bfec8ecbf87456f0b4118252f02c99e4c071268539e8d3e83bea5b
Manifestec31cd817f9256a4bbec8cdae6cd0421fcd4818c77c535069ff217c2091948b0

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
SignaturetkhZIp2NgQzCDoifCbP8FIBy1AITpkL7aO1kFgUaW6sTzgWWbijn29HnC11YRlOMxvmFD9vVhGL6Xo1cU4XOBA==
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

2026-09-17T11:02:13.437042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049405
observed 6dda8c8e57bfec8ecbf87456f0b41182...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:13.417853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049405/manifest.json
observed ec31cd817f9256a4bbec8cdae6cd0421...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:13.399640ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049405/publication.md
observed e6ec2a65887f78e3cb456eba400dd6dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:13.381188ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049405/publication.txt
observed 058f034398f2a6d5a559c790b9e4caf3...
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.