OpenTechnical

OT-2026-000048155

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000048155) never changes.

Identity and time

Publication numberOT-2026-000048155 · never reused
Internal UUID01a0ae80-4de2-7566-ae40-08c58fcf5e56 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048155
StatusPUBLIC

Content hashes

Canonical text5bc3e37932c0ac792dc8769e221a4e9c929dbd8533c46af1d4cc320c48ab2d0e
Markdown146d708808eb8b690f7a01fccea1dd2636f511cf503c47cae06471af8d6eee75
PDF
Publication page10a76b235f8c23bdfcfb129909a92bf5e8655f55e98f7e7589c44c10355a594b
Manifest5a149f54aba747ebbbdee5ff7a3d0cb7936cdb2af278c2e4ae912489f506469f

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
Signature+MA2vcPBK0McJdmN38luonzR4Lt/Vt5g+/DfnRYmAIYoaztCRUKo7U2XYulGoaz6dsKsNniwOxIkl9bigd5FAw==
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

2026-09-17T11:04:40.940428ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048155
observed 10a76b235f8c23bdfcfb129909a92bf5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:40.922540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048155/manifest.json
observed 5a149f54aba747ebbbdee5ff7a3d0cb7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:40.904682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048155/publication.md
observed 146d708808eb8b690f7a01fccea1dd26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:40.885963ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048155/publication.txt
observed 5bc3e37932c0ac792dc8769e221a4e9c...
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.