OpenTechnical

OT-2026-000081507

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, plant vacuum fed, sustained blow-off before set-down

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-2026-000081507) never changes.

Identity and time

Publication numberOT-2026-000081507 · never reused
Internal UUID01a0ae97-0f70-7692-ba78-01cca998a76e · 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-2026-000081507
StatusPUBLIC

Content hashes

Canonical text0d7731bbebbfbba1bba27a207cf1b75bb7cf10645fc2552118720911c010ad42
Markdowncfb5dd68bb76127014c918406123c8793f863093c6dce6fb05f59a7200457d07
PDF
Publication page73eb1223b7e1cc2e033d00e060aeb35b1871dc041d673bce07e6c6757206e84f
Manifest9bc2b8f50c563b9ec3f4ce780dfb4d5cafe6bde38f7b11546079f3f0ab7a8df0

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
Signature4K2Ct1pB8HXlFGklI9U8ukRUCytnM5Mdl7J18BaYKR48gsoRupPgePbIt5kM3apIeU4WaqRMF7kx9JeiVMG7Dg==
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

2026-09-17T09:59:31.311439ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081507
observed 73eb1223b7e1cc2e033d00e060aeb35b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:31.293712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081507/manifest.json
observed 9bc2b8f50c563b9ec3f4ce780dfb4d5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:31.275846ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081507/publication.md
observed cfb5dd68bb76127014c918406123c879...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:31.256042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081507/publication.txt
observed 0d7731bbebbfbba1bba27a207cf1b75b...
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.