OpenTechnical

OT-2026-000012513

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, 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-2026-000012513) never changes.

Identity and time

Publication numberOT-2026-000012513 · never reused
Internal UUID01a0ae6d-39f7-7ba0-917a-90ca780a8783 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012513
StatusPUBLIC

Content hashes

Canonical text473fd51bbd240221af8e7de8fc053e5bf0382cd3c3a5f6adcdf236ecf71588c2
Markdownab5da12c884170aa252817bc0d20ddddc9a7343616b32d200bd6e3c860c3a7c5
PDF
Publication pagedaca16f954a7d3e9921e2813fb5f1ce08ce42597bf61c3c800e59361c74e17c4
Manifest2e9c763ad0928d8c6614d2fc77e0dd669d0dd4ca12f2bf3c0a551ce0b82b69eb

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
SignaturepPzZ7XV2I8uqGYRuaXIqSCRS+D4ebtCfqMvX90IgH/22C9v6bgk1NbfpLzCfTYN0KLLLbPol32EL8/ZaRpLbDA==
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

2026-09-17T12:12:02.141791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012513
observed daca16f954a7d3e9921e2813fb5f1ce0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:02.122429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012513/manifest.json
observed 2e9c763ad0928d8c6614d2fc77e0dd66...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:02.102681ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012513/publication.md
observed ab5da12c884170aa252817bc0d20dddd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:02.086136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012513/publication.txt
observed 473fd51bbd240221af8e7de8fc053e5b...
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.