OpenTechnical

OT-2026-000017721

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, pulsed 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-2026-000017721) never changes.

Identity and time

Publication numberOT-2026-000017721 · never reused
Internal UUID01a0ae6e-96fa-7048-bdc2-69b4b3cd62e5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:38.350302Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017721
StatusPUBLIC

Content hashes

Canonical textf01583750b83b093189f56514105194804ad1107317fd2af75cb47fa25a29766
Markdown0e6ff98fcc49f830d807109fed7c99863409b7dd97825ac1627f8842d4061812
PDF
Publication page727b77d461e921d186c13b046d35e86313cff7632470b788206473b2fbd52b43
Manifestbfbb28b7b629f25adbfea48b451f9cf9a1bdfbb9db6c1b91ba73966e05164370

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
SignaturePb448JzzVJhp3vuaBmzauko3htNYeECP3hGJ+Hm1h6Enn1Fkx/af2lJBHkYUy2m5nCsRm4ky1BpxU6VmJe7OCA==
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

2026-09-17T12:01:40.327874ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017721
observed 727b77d461e921d186c13b046d35e863...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:40.311895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017721/manifest.json
observed bfbb28b7b629f25adbfea48b451f9cf9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:40.295796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017721/publication.md
observed 0e6ff98fcc49f830d807109fed7c9986...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:40.279789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017721/publication.txt
observed f01583750b83b093189f565141051948...
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.